update

backend/agents.py

@@ -5,6 +5,7 @@ respective provider fails — the other keeps running unchanged.
 """
 
 import asyncio
+import heapq
 import logging
 import os
 import re
@@ -22,6 +23,17 @@ from config import (PROVIDERS, DEFAULT_PROVIDER, MAX_CONCURRENT_AGENTS,
 log = logging.getLogger("creator.agents")
 
 _active_processes: dict[str, asyncio.subprocess.Process] = {}
+_active_started: dict[str, float] = {}   # agent_key → wall-clock start (for the live runtime display)
+
+
+def active_agents(scope_prefix: str | None = None) -> list[dict]:
+    """Currently running agents and how long they've been running. Filter by key prefix
+    (e.g. f"blocks-{topic}-") for one topic. → [{key, runtime}] sorted longest-first."""
+    now = time.time()
+    out = [{"key": k, "runtime": round(now - t, 1)}
+           for k, t in list(_active_started.items())
+           if k in _active_processes and (not scope_prefix or k.startswith(scope_prefix))]
+    return sorted(out, key=lambda a: -a["runtime"])
 
 # Cancelled scopes (key prefixes, symmetric to kill_process). An agent whose
 # key starts with one of these prefixes aborts BEFORE the spawn — so agents WAITING
@@ -43,26 +55,71 @@ def _scope_cancelled(agent_key: str) -> bool:
 # Caps the real CLI processes — independent of the pipeline semaphore in
 # generator.py. The acquire happens BEFORE the spawn so that queue wait time
 # does not count against the agent timeout.
-_batch_sem = asyncio.Semaphore(MAX_CONCURRENT_AGENTS)
+class _PrioritySemaphore:
+    """asyncio.Semaphore variant: when slots are scarce, the LOWEST priority number is served first
+    (FIFO within the same priority). Lets earlier pipeline columns grab agents before later ones."""
+    def __init__(self, value: int):
+        self._value = value
+        self._waiters: list = []  # heap of [priority, seq, future]
+        self._seq = 0
+
+    async def acquire(self, priority: int = 100):
+        if self._value > 0:
+            self._value -= 1
+            return
+        fut = asyncio.get_event_loop().create_future()
+        entry = [priority, self._seq, fut]
+        self._seq += 1
+        heapq.heappush(self._waiters, entry)
+        try:
+            await fut  # release() hands us the slot directly (no value change)
+        except BaseException:
+            entry[2] = None  # tombstone so release() skips this dead waiter
+            if fut.done() and not fut.cancelled():
+                self.release()  # granted just before we were cancelled → pass it on
+            raise
+
+    def release(self):
+        while self._waiters:
+            entry = heapq.heappop(self._waiters)
+            if entry[2] is not None and not entry[2].done():
+                entry[2].set_result(None)  # hand the slot straight to the highest-priority waiter
+                return
+        self._value += 1
+
+
+_batch_sem = _PrioritySemaphore(MAX_CONCURRENT_AGENTS)
 _interactive_sem = asyncio.Semaphore(MAX_CONCURRENT_INTERACTIVE)
-# Per-topic caps (lazily created): each topic gets its own batch semaphore of size
-# MAX_CONCURRENT_AGENTS_PER_TOPIC, nested INSIDE the global _batch_sem.
-_topic_sems: dict[str, asyncio.Semaphore] = {}
+# Per-topic caps (lazily created): each topic gets its own priority semaphore of size
+# MAX_CONCURRENT_AGENTS_PER_TOPIC, nested INSIDE the global _batch_sem. Priority-based too, so the
+# per-topic queue can't undo the global priority when one topic is the only load.
+_topic_sems: dict[str, _PrioritySemaphore] = {}
+
+# Earlier kanban columns get the scarce global slot first (smaller = higher priority).
+_STAGE_PRIORITY = ("research", "verify", "naming", "small", "dep")
+
+
+def _agent_priority(key: str) -> int:
+    for i, tag in enumerate(_STAGE_PRIORITY):
+        if f"-{tag}-" in key or key.endswith(f"-{tag}"):
+            return i
+    return len(_STAGE_PRIORITY)  # downstream agents (subblocks/facts/…) after the inventory columns
 
 
 @asynccontextmanager
-async def _batch_gate(scope: str | None):
-    """Acquire a batch slot: per-topic semaphore FIRST, then the global one. The order matters —
-    a waiter holds only its (per-topic) slot while queueing for the global cap, so a saturated topic
-    never blocks other topics on the global semaphore. scope=None → global cap only."""
-    topic_sem = _topic_sems.setdefault(scope, asyncio.Semaphore(MAX_CONCURRENT_AGENTS_PER_TOPIC)) if scope else None
-    if topic_sem is None:
-        async with _batch_sem:
-            yield
-    else:
-        async with topic_sem:
-            async with _batch_sem:
+async def _batch_gate(scope: str | None, priority: int):
+    """Per-topic slot FIRST (fair), then the GLOBAL slot by priority (earlier columns win when
+    agents are scarce). Order matters — a waiter holds only its per-topic slot while queueing globally."""
+    topic_sem = _topic_sems.setdefault(scope, _PrioritySemaphore(MAX_CONCURRENT_AGENTS_PER_TOPIC)) if scope else None
+    if topic_sem is not None:
+        await topic_sem.acquire(priority)
+    await _batch_sem.acquire(priority)
+    try:
         yield
+    finally:
+        _batch_sem.release()
+        if topic_sem is not None:
+            topic_sem.release()
 
 # Serialize OpenCode starts: processes starting simultaneously collide on the
 # internal session DB ("database is locked", exit after <1s). The short
@@ -122,6 +179,7 @@ def kill_process(agent_key_prefix: str) -> None:
     for key, process in list(_active_processes.items()):
         if process.returncode is not None:  # clean up dead entries while iterating
             _active_processes.pop(key, None)
+            _active_started.pop(key, None)
             continue
         if key.startswith(agent_key_prefix):
             log.debug("kill agent %s", key)
@@ -137,6 +195,7 @@ async def run_agent(
     capabilities: str = "none",
     lane: str = "batch",
     scope: str | None = None,
+    on_line=None,
 ) -> tuple[int, str, str]:
     if _scope_cancelled(agent_key):  # before queueing: don't even enter the queue
         return 1, "", "cancelled"
@@ -144,16 +203,16 @@ async def run_agent(
         return 1, "", f"Unknown provider: {provider}"
     if shutil.which(PROVIDERS[provider]["cli"]) is None:
         return 1, "", f"CLI '{PROVIDERS[provider]['cli']}' not installed (provider: {provider})"
-    gate = _interactive_sem if lane == "interactive" else _batch_gate(scope)
+    gate = _interactive_sem if lane == "interactive" else _batch_gate(scope, _agent_priority(agent_key))
     async with gate:
         if _scope_cancelled(agent_key):  # after the acquire: cancelled in the queue → no spawn
             return 1, "", "cancelled"
         if PROVIDERS[provider]["cli"] == "opencode":
-            return await _run_opencode(agent_key, prompt, timeout, provider, role, capabilities)
+            return await _run_opencode(agent_key, prompt, timeout, provider, role, capabilities, on_line=on_line)
         return await _run_claude_cli(agent_key, prompt, timeout, role, capabilities)
 
 
-async def _communicate(agent_key: str, cmd: list[str], stdin_data: bytes | None, timeout: int, stagger: bool = False) -> tuple[int, str, str]:
+async def _communicate(agent_key: str, cmd: list[str], stdin_data: bytes | None, timeout: int, stagger: bool = False, on_line=None) -> tuple[int, str, str]:
     start = time.monotonic()
 
     async def spawn():
@@ -172,8 +231,25 @@ async def _communicate(agent_key: str, cmd: list[str], stdin_data: bytes | None,
     else:
         process = await spawn()
     _active_processes[agent_key] = process
+    _active_started[agent_key] = time.time()
     try:
         try:
+            if on_line is not None:
+                # Streaming path: read stdout line by line, hand each raw line to on_line LIVE.
+                out_chunks: list[str] = []
+                async def _pump():
+                    async for raw in process.stdout:
+                        s = raw.decode("utf-8", errors="replace")
+                        out_chunks.append(s)
+                        try:
+                            on_line(s)
+                        except Exception:
+                            log.debug("on_line callback failed", exc_info=True)
+                await asyncio.wait_for(_pump(), timeout=timeout)
+                await process.wait()
+                stderr_b = await process.stderr.read()
+                stdout, stderr = "".join(out_chunks).encode("utf-8"), stderr_b
+            else:
                 stdout, stderr = await asyncio.wait_for(
                     process.communicate(input=stdin_data),
                     timeout=timeout,
@@ -196,6 +272,7 @@ async def _communicate(agent_key: str, cmd: list[str], stdin_data: bytes | None,
         # the NEW process from tracking.
         if _active_processes.get(agent_key) is process:
             del _active_processes[agent_key]
+            _active_started.pop(agent_key, None)
 
 
 async def _run_claude_cli(agent_key: str, prompt: str, timeout: int, role: str, capabilities: str) -> tuple[int, str, str]:
@@ -208,7 +285,7 @@ async def _run_claude_cli(agent_key: str, prompt: str, timeout: int, role: str,
     return await _communicate(agent_key, cmd, prompt.encode("utf-8"), timeout)
 
 
-async def _run_opencode(agent_key: str, prompt: str, timeout: int, provider: str, role: str, capabilities: str) -> tuple[int, str, str]:
+async def _run_opencode(agent_key: str, prompt: str, timeout: int, provider: str, role: str, capabilities: str, on_line=None) -> tuple[int, str, str]:
     cfg = PROVIDERS[provider]
     # Prompt via temp file instead of argv (ARG_MAX protection for large project prompts)
     with tempfile.NamedTemporaryFile("w", suffix=".md", delete=False, encoding="utf-8", dir=tempfile.gettempdir()) as f:
@@ -224,9 +301,11 @@ async def _run_opencode(agent_key: str, prompt: str, timeout: int, provider: str
         "--dangerously-skip-permissions",
         "-f", str(prompt_path),
     ]
+    if on_line is not None:
+        cmd += ["--format", "json"]  # raw JSON events → parsed live by on_line
     try:
-        rc, stdout, stderr = await _communicate(agent_key, cmd, None, timeout, stagger=True)
-        return rc, _clean_opencode_output(stdout), stderr
+        rc, stdout, stderr = await _communicate(agent_key, cmd, None, timeout, stagger=True, on_line=on_line)
+        return rc, (stdout if on_line is not None else _clean_opencode_output(stdout)), stderr
     finally:
         prompt_path.unlink(missing_ok=True)
 

backend/blocks.py

@@ -23,14 +23,14 @@ from pathlib import Path
 import database as db
 import embedding
 from agents import kill_process, cancel_scope, clear_scope, run_agent
-from config import CONSENSUS_GRACE, RESEARCH_GRACE, CONSENSUS_MAX_ROUNDS, DEFAULT_PROVIDER, CRAWL_KEEP_PATTERNS, CRAWL_NOISE_PATTERNS, CRAWL_MIN_CHARS, QUELLE_RELEVANZ_CHUNK, QUELLE_RELEVANZ_SNIPPET, EMBEDDING_AKTIV, EMBEDDING_SUB_DUP, EMBEDDING_SUB_SAME
+from config import CONSENSUS_GRACE, RESEARCH_GRACE, CONSENSUS_MAX_ROUNDS, DEFAULT_PROVIDER, CRAWL_KEEP_PATTERNS, CRAWL_NOISE_PATTERNS, CRAWL_MIN_CHARS, QUELLE_RELEVANZ_CHUNK, QUELLE_RELEVANZ_SNIPPET, EMBEDDING_AKTIV, EMBEDDING_SUB_DUP, EMBEDDING_SUB_SAME, KANBAN_INVENTORY
 from fsutil import atomic_write_text, atomic_write_json
 from jsonio import read_json_file as _json_file
 from paths import arbeit_dir, blocks_path, question_pattern_path, project_dir, subblocks_path, source_path, source_crawl_dir, safe_folder
 from crawl import crawl
 from pipeline import (
     CANCELLED, FAILED, OK, GenContext, _extra, _gather_progress, _yesno_schema, _log, _prompt, _race,
-    _relevance_schema, _runde_schema, _semaphore, _str_list, _levels_schema, _timeout, run_single_slot,
+    _relevance_schema, _semaphore, _str_list, _levels_schema, _timeout, run_single_slot,
 )
 from textkit import (
     _unique_title, _load_blocks, _norm_title, _parse_selection, _parse_subblocks, _title,
@@ -55,6 +55,13 @@ SUBBLOCK_CAP = 900     # subblock find loop per chunk (15 min)
 CONSOLIDATION_CHUNK = 600  # up to here ONE global judge (dedups everything); above that chunked + merge pass — fallback path only
 DEDUP_PAIR_FLOOR = 0.6      # min cosine for a candidate pair (complete-link aggregates → no chaining)
 DEDUP_PAIRS_CHUNK = 40      # pairs per judge package (pairwise verification instead of a block mixer)
+RESEARCH_MIN_RUNTIME = 300   # research: do not finish before 5 min (let agents search thoroughly)
+RESEARCH_MAX_RUNTIME = 1800  # research: hard wall-clock cap at 30 min
+
+# Inventory columns (kanban streaming dataflow) — also the fine-step labels shown as pills.
+INVENTORY_STEPS = ("Research", "Merge", "Chain", "Chain-Verify", "Naming", "Naming-Verify",
+                   "Chain-Filter", "Filter-Verify", "Block", "Small-Blocks", "Small-Verify",
+                   "Dependency", "Dependency-Verify", "Main-Block")
 FILTER_CHUNK = 35           # blocks to assess per judge in the degrade pass (full list as context)
 # Balance question-pattern chunks by sub load via LPT (makespan), not by block count.
 QUESTION_CHUNK_SUBS = 50       # target sum of relevant subs per chunk
@@ -198,7 +205,7 @@ def _blocks_steps(topic: str) -> tuple:
     all packages run in parallel; the step remains until the last package is done.
     """
     q = load_source(topic)
-    base = ("Research", "Consolidation", "Clarification", "Blocks-Filter")
+    base = INVENTORY_STEPS
     rest = (
         "Subblocks find", "Subblocks select", "Subblocks clarify",
         "Facts find", "Facts check", "Facts fix",
@@ -228,7 +235,7 @@ def _report_p(set_p, topic: str, step: str):
 # Special steps (Source laden, Supplement) belong to the "Inventory" phase.
 PHASEN = (
     ("Source", ("Source prep",)),
-    ("Inventory", ("Research", "Consolidation", "Clarification", "Blocks-Filter", "Supplement")),
+    ("Inventory", INVENTORY_STEPS + ("Supplement",)),
     ("Subblocks", ("Subblocks find", "Subblocks select", "Subblocks clarify")),
     ("Facts", ("Facts find", "Facts check", "Facts fix")),
     ("Levels", ("Levels find", "Levels select", "Levels clarify")),
@@ -288,9 +295,11 @@ def _all_slot_files(files: dict) -> list[Path]:
     # Subblock/levels slots are dynamic per chunk — collect via glob.
     dyn = (list(work_dir.glob("subblock-*")) + list(work_dir.glob("facts-*")) + list(work_dir.glob("level-*")) + list(work_dir.glob("relevance-*"))
            + list(work_dir.glob("question-pattern-*")) + list(work_dir.glob("outline-*")) + list(work_dir.glob("artifact-*"))
-           + list(work_dir.glob("research-*")) + list(work_dir.glob("consolidation-*"))
-           + list(work_dir.glob("clarification*")) + list(work_dir.glob("dedup-*"))
-           + list(work_dir.glob("inventar-filter*"))) if work_dir.is_dir() else []
+           + list(work_dir.glob("research-*"))
+           + list(work_dir.glob("combine-*")) + list(work_dir.glob("verify-*")) + list(work_dir.glob("naming*"))
+           # legacy artefacts of the old consolidation/clarification/filter steps (cleaned on reset)
+           + list(work_dir.glob("consolidation-*")) + list(work_dir.glob("clarification*"))
+           + list(work_dir.glob("dedup-*")) + list(work_dir.glob("inventar-filter*"))) if work_dir.is_dir() else []
     return [
         *files["research"], files["research_mapping"],
         *(p for slots in files["selection"].values() for p in slots),
@@ -317,10 +326,10 @@ async def _resume_step(topic: str) -> int:
     files = _blocks_files(topic)
     steps_all = _blocks_steps(topic)
     if not files["final"].exists():
-        for step in ("Source prep", "Research", "Consolidation", "Clarification", "Blocks-Filter"):
+        for step in ("Source prep",) + INVENTORY_STEPS:
             if step in steps_all and await db.get_step_status(topic, step) != "done":
                 return _step_idx(topic, step)
-        return _step_idx(topic, "Blocks-Filter")  # statuses done but artefact gone → rewrite
+        return _step_idx(topic, INVENTORY_STEPS[-1])  # statuses done but artefact gone → rewrite
     q = load_source(topic)
     if q["type"] == "projekt" and not files["ergaenzung"].exists():
         return _step_idx(topic, "Supplement")
@@ -504,27 +513,18 @@ async def _reset_from_step(topic: str, step_idx: int, to_idx: int | None = None)
                 atomic_write_json(files["sidecar"], sc, indent=1)
     if any(s.startswith("Subblock") for s in affected):
         files["sub_roh"].unlink(missing_ok=True); gd("subblock-*"); await db.delete_subblocks(topic)
-    # --- Inventory (DB status cascades) ---
-    if "Blocks-Filter" in affected and not ({"Clarification", "Consolidation", "Research"} & affected):
-        # Only filter rebuilt: degraded blocks back to consensus.
-        d = _json_file(work_dir / "inventar-filter.json")
-        for f in (d.get("fragments", []) if isinstance(d, dict) else []):
-            await db.set_block_status(topic, _norm_title(f.get("fragment", "")), "consensus")
-        gd("inventar-filter*")
-    if {"Clarification", "Consolidation"} & affected and not ({"Research"} & affected):
-        # Clarification/consolidation rebuilt: clear inventory DB (research readers stay). Clarification rollback
-        # would be fragile due to renaming → cleanly rebuild from consolidation.
-        await db.delete_blocks(topic)
-        gd("clarification*"); gd("consolidation-*"); gd("dedup-*"); gd("inventar-filter*")
-    if "Research" in affected:  # whole inventory like a phase reset
+    # --- Inventory (kanban streaming dataflow) ---
+    # The kanban flow is a single streaming run (cards, not discrete steps) → any inventory-step reset
+    # rewinds the WHOLE inventory: clear the kanban tables + the mirrored blocks, research rebuilds.
+    inv = set(INVENTORY_STEPS) - {"Research"}
+    if ({"Research"} | inv) & affected:
         for p_old in _all_slot_files(files):
             p_old.unlink(missing_ok=True)
         await db.delete_blocks(topic)
+        await db.kanban_reset(topic)
     # blocks.md is the inventory aggregate — stale once any inventory sub-step is reset. Delete it so the
-    # status/resume see the inventory as open from the reset step (the pipeline rewrites it; the DB step
-    # statuses of the kept earlier steps let those skip). On a BOUNDED reset (to_idx set) the later steps
-    # are kept on purpose → keep their aggregate too.
-    if to_idx is None and {"Research", "Consolidation", "Clarification", "Blocks-Filter"} & affected:
+    # status/resume see the inventory as open. On a BOUNDED reset (to_idx set) the later steps are kept.
+    if to_idx is None and ({"Research"} | inv) & affected:
         files["final"].unlink(missing_ok=True)
 
 
@@ -1800,18 +1800,6 @@ def _crawl_index(folder) -> dict[str, str]:
 
 
 
-async def _set_inventory(topic: str, record: str, status: str) -> None:
-    """Write an inventory entry ('title — description') with status to the DB."""
-    title = _title(record)
-    norm = _norm_title(title)
-    if not norm:
-        return
-    split_parts = [t.strip() for t in record.split(" — ")]
-    desc = split_parts[1] if len(split_parts) >= 2 else ""
-    await db.upsert_block(topic, norm, title, desc)
-    await db.set_block_status(topic, norm, status)
-
-
 def _triage_rules(folder, pages: list[str]) -> tuple[list[str], list[str]]:
     """Deterministic content/noise filter (config.CRAWL_*). Substring match (lowercase) against
     URL + filename. Order: keep > noise > min_chars > keep. → (content, noise)."""
@@ -2018,7 +2006,8 @@ async def _research_batch(ctx: GenContext, set_p, files: dict, q: dict, folder,
             "payload": (lambda result, p=p, rid=f"t{i}": ((rid, t) if (t := _file_payload(p)) else None)),
         } for i, p in enumerate(paths, 1)]
         agent_texts = await _race(topic, "Research", slots, 3, _timeout("research"), provider,
-                            cancelled=is_cancelled, grace=RESEARCH_GRACE)
+                            cancelled=is_cancelled, grace=RESEARCH_GRACE,
+                            min_runtime=RESEARCH_MIN_RUNTIME, max_runtime=RESEARCH_MAX_RUNTIME)
         if is_cancelled():
             return False
         if not agent_texts:
@@ -2176,39 +2165,102 @@ def _canonical(candidates: list[dict], idxs: list[int], seen_norm: set[str]) ->
     return {"title": title, "description": candidates[k]["description"]}
 
 
-async def _pairwise_groups(ctx: GenContext, set_p, work_dir: Path, candidates: list[dict],
-                               blocks: list[list[int]], sims) -> list[list[int]] | None:
-    """Verify candidate PAIRS individually (ja/nein) inside each similarity block, then form
-    COMPLETE-LINK cliques — same entity-resolution mechanism as the dedup pass: no chaining
-    (A=B + B=C without A=C does NOT merge), no aspect over-merging like the old N→groups judge.
-    Only block-internal pairs with cosine ≥ DEDUP_PAIR_FLOOR are checked; members without a
-    confirmed edge stay singletons. → final groups (global candidate indices) · None on cancel."""
-    topic, is_cancelled = ctx.topic, ctx.is_cancelled
-    n = len(candidates)
-    pairs: list[tuple[int, int]] = []  # block-internal candidate pairs above the pair floor
+def _naming_schema(data, count: int) -> int | None:
+    """{"best": N} → 1-based member index in [1, count] · otherwise None."""
+    if not isinstance(data, dict):
+        return None
+    try:
+        n = int(data.get("best"))
+    except (ValueError, TypeError):
+        return None
+    return n if 1 <= n <= count else None
+
+
+async def _merge(ctx: GenContext, set_p, files: dict) -> bool:
+    """Merge (exact dedup): already folded at ingest (upsert by title_norm + reader-union). This
+    step only restores the candidates after a reset (re-ingest from research-*.md) and marks done."""
+    topic = ctx.topic
+    if await db.get_step_status(topic, "Merge") == "done":
+        return True
+    set_p("Merge…", step=_step_idx(topic, "Merge"))
+    if not await db.list_blocks(topic):
+        await _reingest_research_files(topic, files["arbeit"])
+    if not await db.list_blocks(topic):
+        _blocks_errors[topic] = "Merge: no candidates"
+        return False
+    await db.set_step_status(topic, "Merge", "done")
+    return True
+
+
+async def _combine(ctx: GenContext, set_p, files: dict) -> bool:
+    """Combine (blocking): embed all candidates, build capped similarity blocks, emit the block-
+    internal candidate PAIRS (cosine ≥ DEDUP_PAIR_FLOOR) for the Verify judge. Pure embedding, no
+    LLM. Pairs stored by title_norm. No embedding model → no pairs (every candidate stays its own)."""
+    topic = ctx.topic
+    if await db.get_step_status(topic, "Combine") == "done":
+        return True
+    set_p("Combine…", step=_step_idx(topic, "Combine"))
+    work_dir = files["arbeit"]
+    if not await db.list_blocks(topic):
+        await _reingest_research_files(topic, work_dir)
+    rows = await db.list_blocks(topic)
+    if not rows:
+        _blocks_errors[topic] = "Combine: no candidates"
+        return False
+    by_norm = {r["title_norm"]: r for r in rows}
+    order = sorted(by_norm)
+    pairs_norm: list[list[str]] = []
+    if EMBEDDING_AKTIV and len(order) >= 2 and await asyncio.to_thread(embedding.available):
+        texts = [f"{by_norm[nm]['title']} — {by_norm[nm]['description']}" if by_norm[nm]["description"]
+                 else by_norm[nm]["title"] for nm in order]
+        sims = await asyncio.to_thread(embedding.embed_sims, texts)
+        if sims is not None:
+            blocks = await asyncio.to_thread(embedding.capped_blocks, sims, None, None)
             for b in blocks:
                 for x in range(len(b)):
                     for y in range(x + 1, len(b)):
                         i, j = b[x], b[y]
                         if float(sims[i][j]) >= DEDUP_PAIR_FLOOR:
-                    pairs.append((i, j))
-    if not pairs:
-        return [[i] for i in range(n)]
+                            pairs_norm.append([order[i], order[j]])
+    atomic_write_json(work_dir / "combine-pairs.json", {"pairs": pairs_norm}, indent=1)
+    _log(topic, f"Combine: {len(order)} candidates → {len(pairs_norm)} candidate pairs (embedding blocking)")
+    await db.set_step_status(topic, "Combine", "done")
+    return True
+
+
+async def _verify_chains(ctx: GenContext, set_p, files: dict) -> bool:
+    """Verify (matching): a judge decides each candidate pair (ja/nein), packages run in parallel.
+    Confirmed pairs become complete-link cliques (no chaining → no aspect over-merge). Output =
+    chains (groups of title_norms, a partition of all candidates) → verify-chains.json."""
+    topic, is_cancelled = ctx.topic, ctx.is_cancelled
+    if await db.get_step_status(topic, "Verify") == "done":
+        return True
+    set_p("Verify…", step=_step_idx(topic, "Verify"))
+    work_dir = files["arbeit"]
+    rows = await db.list_blocks(topic)
+    by_norm = {r["title_norm"]: r for r in rows}
+    order = sorted(by_norm)
+    idx_of = {nm: i for i, nm in enumerate(order)}
+    data = _json_file(work_dir / "combine-pairs.json")
+    raw_pairs = data.get("pairs", []) if isinstance(data, dict) else []
+    pairs = [(a, b) for a, b in raw_pairs if a in idx_of and b in idx_of]  # robust against re-ingest
+    edge_norm: list[tuple[str, str]] = []
+    if pairs:
         packages = [pairs[k:k + DEDUP_PAIRS_CHUNK] for k in range(0, len(pairs), DEDUP_PAIRS_CHUNK)]
 
-    def pair_path(pi): return work_dir / f"consolidation-paar-c{pi}.json"
+        def pair_path(pi): return work_dir / f"verify-paar-c{pi}.json"
 
         async def _filt(pi, paare):
             fp = pair_path(pi)
             if _pairs_schema(_json_file(fp)):
                 return  # resume
             lines = "\n\n".join(
-            f"{j + 1}.\nA: {candidates[a]['title']} — {candidates[a]['description']}"
-            f"\nB: {candidates[b]['title']} — {candidates[b]['description']}"
-            for j, (a, b) in enumerate(paare))
+                f"{k + 1}.\nA: {by_norm[a]['title']} — {by_norm[a]['description']}"
+                f"\nB: {by_norm[b]['title']} — {by_norm[b]['description']}"
+                for k, (a, b) in enumerate(paare))
             await run_single_slot(
-            ctx, f"Consolidation pairs {pi}",
-            key=f"blocks-{topic}-consolidation-paar-c{pi}",
+                ctx, f"Verify pairs {pi}",
+                key=f"blocks-{topic}-verify-paar-c{pi}",
                 prompt=_prompt("Blocks-Paar-Filter", topic=topic, pairs=lines, out_path=fp),
                 role="judge", capabilities="files",
                 payload=lambda result, p=fp: _pairs_schema(_json_file(p)),
@@ -2216,291 +2268,171 @@ async def _pairwise_groups(ctx: GenContext, set_p, work_dir: Path, candidates: l
             )
 
         await _gather_progress([_filt(pi, p) for pi, p in enumerate(packages)],
-                              len(packages), _report_p(set_p, topic, "Consolidation"))
+                                  len(packages), _report_p(set_p, topic, "Verify"))
         if is_cancelled():
-        return None
-    edge_list: list[tuple[int, int]] = []
+            return False
         for pi, paare in enumerate(packages):
             verdict = _pairs_schema(_json_file(pair_path(pi))) or {}
-        for j, (a, b) in enumerate(paare):
-            if verdict.get(j + 1):
-                edge_list.append((a, b))
-    cliques = _cliques(n, edge_list)
+            for k, (a, b) in enumerate(paare):
+                if verdict.get(k + 1):
+                    edge_norm.append((a, b))
+    edges = [(idx_of[a], idx_of[b]) for a, b in edge_norm]
+    cliques = _cliques(len(order), edges)
     covered = {i for g in cliques for i in g}
-    return cliques + [[i] for i in range(n) if i not in covered]
+    groups = cliques + [[i] for i in range(len(order)) if i not in covered]
+    chains = [[order[i] for i in g] for g in groups]
+    atomic_write_json(work_dir / "verify-chains.json", {"chains": chains}, indent=1)
+    multi = sum(1 for c in chains if len(c) > 1)
+    _log(topic, f"Verify: {len(edge_norm)} confirmed pairs → {len(chains)} chains ({multi} multi)")
+    await db.set_step_status(topic, "Verify", "done")
+    return True
 
 
-async def _consolidate_embedding(ctx: GenContext, set_p, files: dict, candidates: list[dict]) -> bool:
-    """Two-stage: embeddings → coarse capped blocks (high recall) → one judge per multi-block,
-    grouping the titles into the real blocks → reader union (≥2 = consensus)."""
+async def _naming(ctx: GenContext, set_p, files: dict) -> bool:
+    """Naming (canonicalization): per multi-member chain a judge picks the best, most concrete
+    EXISTING member title (no invented umbrella term). Singletons keep their title. Output = winner
+    title_norm per chain → naming.json. Fallback without a model: the _canonical heuristic."""
     topic, is_cancelled = ctx.topic, ctx.is_cancelled
-    work_dir = files["arbeit"]
-    texts = [f"{b['title']} — {b['description']}" if b["description"] else b["title"] for b in candidates]
-    sims = await asyncio.to_thread(embedding.embed_sims, texts)
-    if sims is None:  # model not available after all → fallback
-        return await _consolidate_llm(ctx, set_p, files, candidates)
-    # Level 1: coarse similarity blocks (capped, no giant component) — pure blocking for recall.
-    blocks = await asyncio.to_thread(embedding.capped_blocks, sims, None, None)
-    # Level 2: verify candidate PAIRS individually + complete-link cliques (no chaining, no aspect
-    # over-merging) instead of an N→groups judge that fused whole topics into one block.
-    groups = await _pairwise_groups(ctx, set_p, work_dir, candidates, blocks, sims)
-    if groups is None or is_cancelled():
-        return False
-
-    def _min_cos(idxs):  # internal coherence as a check (chains would be ~0.3)
-        if len(idxs) < 2:
-            return 1.0
-        return round(min(float(sims[i][j]) for n, i in enumerate(idxs) for j in idxs[n + 1:]), 3)
-
-    # Consensus = ≥2 distinct readers per cluster. Legacy DBs without reader tracking (research ran
-    # before the migration, no re-ingest) have empty reader sets → fall back to a title heuristic
-    # (otherwise EVERYTHING would land in the rest).
-    hat_reader = any(b["reader"] for b in candidates)
-    consensus, rest, debug, seen_norm = [], [], [], set()
-    for idxs in groups:
-        reader = set().union(*[set(candidates[k]["reader"]) for k in idxs]) if idxs else set()
-        if hat_reader:
-            score = len(reader)
-        else:  # without reader data: max(mentions, number of distinct title variants in the cluster)
-            score = max(max(candidates[k]["mentions"] for k in idxs),
-                        len({candidates[k]["title_norm"] for k in idxs}))
-        rep = _canonical(candidates, idxs, seen_norm)
-        record = f"{rep['title']} — {rep['description']}" if rep["description"] else rep["title"]
-        (consensus if score >= 2 else rest).append(record)
-        debug.append({"title": rep["title"], "reader": sorted(reader), "score": score,
-                      "consensus": score >= 2, "min_cos": _min_cos(idxs),
-                      "mitglieder": [candidates[k]["title"] for k in idxs]})
-    atomic_write_json(work_dir / "consolidation-cluster.json", debug, indent=1)
-    multi_blocks = sum(1 for b in blocks if len(b) > 1)
-    _log(topic, f"Consolidation (pairwise): {len(blocks)} blocks ({multi_blocks} multi) "
-                f"→ {len(groups)} clusters from {len(candidates)} candidates "
-                f"→ {len(consensus)} consensus / {len(rest)} rest")
-
-    await db.delete_blocks(topic)
-    for t in consensus:
-        await _set_inventory(topic, t, "consensus")
-    for t in rest:
-        await _set_inventory(topic, t, "rest")
-    await db.set_step_status(topic, "Consolidation", "done")
+    if await db.get_step_status(topic, "Naming") == "done":
         return True
-
-
-async def _consolidate(ctx: GenContext, set_p, files: dict) -> bool:
-    """Merges raw candidates into consensus (≥2 readers)/rest. Deterministic via embedding clustering;
-    if the model is missing → fall back to the LLM panel (`_consolidate_llm`). Status in DB."""
-    topic = ctx.topic
-    if await db.get_step_status(topic, "Consolidation") == "done":
-        return True
-    set_p("Consolidating research…", step=_step_idx(topic, "Consolidation"))
-    candidates = await db.list_blocks(topic)
-    if not candidates:
-        # Candidates were consumed by an earlier consolidation (overwritten with consensus/rest) or
-        # wiped by a reset → rebuild them from the saved research files so this step can re-run.
-        await _reingest_research_files(topic, files["arbeit"])
-        candidates = await db.list_blocks(topic)
-    if not candidates:
-        _blocks_errors[topic] = "Consolidation: no candidates"
-        return False
-    if EMBEDDING_AKTIV and await asyncio.to_thread(embedding.available):
-        return await _consolidate_embedding(ctx, set_p, files, candidates)
-    return await _consolidate_llm(ctx, set_p, files, candidates)
-
-
-async def _consolidate_llm(ctx: GenContext, set_p, files: dict, candidates: list[dict]) -> bool:
-    """Fallback (only without an embedding model): a panel (KONSOLIDIERUNG_PANEL judges) merges
-    candidates semantically; a reconcile judge combines the panel outputs into the final
-    consensus (≥2)/rest (1×) list. Panel instead of a single judge: a single judge is bias-prone and unstable."""
-    topic, provider, is_cancelled = ctx.topic, ctx.provider, ctx.is_cancelled
+    set_p("Naming…", step=_step_idx(topic, "Naming"))
     work_dir = files["arbeit"]
-    chunks = _chunk_nums(candidates, max(1, math.ceil(len(candidates) / CONSOLIDATION_CHUNK)))
+    by_norm = {r["title_norm"]: r for r in await db.list_blocks(topic)}
+    data = _json_file(work_dir / "verify-chains.json")
+    chains = [[nm for nm in c if nm in by_norm] for c in (data.get("chains", []) if isinstance(data, dict) else [])]
+    chains = [c for c in chains if c]
+    if not chains:
+        _blocks_errors[topic] = "Naming: no chains"
+        return False
+    multi = [(ci, c) for ci, c in enumerate(chains) if len(c) > 1]
 
-    async def _map_panel(c: int, eintraege: str, amount: int):
-        """3 mapping judges over `eintraege` → reconcile judge → (consensus, rest). None on cancel/error."""
-        paths = [work_dir / f"consolidation-c{c}-j{j}.json" for j in range(1, CONSOLIDATION_PANEL + 1)]
-        pending = [(j, p) for j, p in enumerate(paths, 1) if _mapping_schema(_json_file(p)) is None]
-        for _, p in pending:
-            p.unlink(missing_ok=True)
-        if pending:
-            slots = [{
-                "key": f"blocks-{topic}-consolidation-c{c}-j{j}",
-                "prompt": _prompt("Blocks-Research-Mapping", topic=topic, n=RESEARCH_READERS, entries=eintraege, out_path=p),
-                "role": "judge", "capabilities": "files",
-                "payload": (lambda result, p=p: _mapping_schema(_json_file(p))),
-            } for j, p in pending]
-            existing = CONSOLIDATION_PANEL - len(pending)
-            await _race(topic, f"Consolidation {c}", slots, max(1, 2 - existing),
-                        _timeout("research_mapping", amount), provider, cancelled=is_cancelled, grace=CONSENSUS_GRACE)
-        if is_cancelled():
-            return None
-        outs = [m for p in paths if (m := _mapping_schema(_json_file(p)))]
-        if not outs:
-            return None
-        # union of panel titles; per title count how many judges list it as consensus.
-        kvotes: dict[str, int] = {}
-        form: dict[str, str] = {}      # norm → display title (first occurrence)
-        order: list[str] = []
-        for kk, rr in outs:
-            for t in kk + rr:
-                nt = _norm_title(_title(t))
-                if not nt:
-                    continue
-                if nt not in form:
-                    form[nt] = t
-                    order.append(nt)
-                    kvotes.setdefault(nt, 0)
-            for t in kk:
-                nt = _norm_title(_title(t))
-                if nt:
-                    kvotes[nt] = kvotes.get(nt, 0) + 1
-        # Reconcile: one merge judge over the union, annotated with judge votes ("k× genannt").
-        rp = work_dir / f"consolidation-c{c}-reconcile.json"
-        recon = _mapping_schema(_json_file(rp))
-        if recon is None:
-            rp.unlink(missing_ok=True)
-            entries_r = "\n".join(f"{i}. {form[nt]} ({max(1, kvotes[nt])}× genannt)" for i, nt in enumerate(order, 1))
-            status, recon = await run_single_slot(
-                ctx, f"Consolidation Reconcile {c}",
-                key=f"blocks-{topic}-consolidation-c{c}-reconcile",
-                prompt=_prompt("Blocks-Research-Mapping", topic=topic, n=CONSOLIDATION_PANEL, entries=entries_r, out_path=rp),
+    def name_path(ci): return work_dir / f"naming-c{ci}.json"
+
+    async def _name(ci, members):
+        fp = name_path(ci)
+        if _naming_schema(_json_file(fp), len(members)) is not None:
+            return  # resume
+        lines = "\n".join(f"{k + 1}. {by_norm[nm]['title']} — {by_norm[nm]['description']}"
+                          for k, nm in enumerate(members))
+        await run_single_slot(
+            ctx, f"Naming {ci}",
+            key=f"blocks-{topic}-naming-c{ci}",
+            prompt=_prompt("Blocks-Naming", topic=topic, members=lines, out_path=fp),
             role="judge", capabilities="files",
-                payload=lambda result, p=rp: _mapping_schema(_json_file(p)),
-                timeout=_timeout("research_mapping", len(order)),
+            payload=lambda result, p=fp, n=len(members): _naming_schema(_json_file(p), n),
+            timeout=_timeout("selection_mapping", len(members)),
         )
-            if status == CANCELLED:
-                return None
-            recon = recon if status != FAILED else None
-        if recon:
-            return recon
-        # Fallback (reconcile failed): code majority — consensus if a majority of judges say consensus.
-        consensus = [form[nt] for nt in order if kvotes[nt] * 2 >= len(outs) and kvotes[nt] > 0]
-        kset = {_norm_title(_title(t)) for t in consensus}
-        return consensus, [form[nt] for nt in order if nt not in kset]
 
-    consensus, rest = [], []
-    for c, chunk in enumerate(chunks, 1):
-        eintraege = "\n".join(
-            f"{i}. {b['title']} — {b['description']} ({b['mentions']}× genannt)" for i, b in enumerate(chunk, 1)
-        )
-        res = await _map_panel(c, eintraege, len(chunk))
-        if res is None:
+    await _gather_progress([_name(ci, c) for ci, c in multi], len(multi), _report_p(set_p, topic, "Naming"))
     if is_cancelled():
         return False
-            _blocks_errors[topic] = "Research mapping failed"
-            return False
-        k, r = res
-        consensus += k
-        rest += r
-    # With multiple chunks: a global merge pass over the combined consensus entries,
-    # so duplicates across chunk boundaries (DAL×4, PHPUnit×5 …) merge.
-    if len(chunks) > 1 and consensus:
-        fp = work_dir / "consolidation-merge.json"
-        fp.unlink(missing_ok=True)
-        eintraege = "\n".join(f"{i}. {t} (2× genannt)" for i, t in enumerate(consensus, 1))
-        status, mapping = await run_single_slot(
-            ctx, "Consolidation Merge",
-            key=f"blocks-{topic}-consolidation-merge",
-            prompt=_prompt("Blocks-Research-Mapping", topic=topic, n=RESEARCH_READERS, entries=eintraege, out_path=fp),
-            role="judge", capabilities="files",
-            payload=lambda result, p=fp: _mapping_schema(_json_file(p)),
-            timeout=_timeout("research_mapping", len(consensus)),
-        )
-        if status == CANCELLED:
-            return False
-        if status != FAILED and mapping:
-            consensus, r2 = mapping
-            rest += r2  # entries downgraded by the merge into the rest
-    # Judge output is authoritative → re-set the inventory in the DB.
-    await db.delete_blocks(topic)
-    for t in consensus:
-        await _set_inventory(topic, t, "consensus")
-    for t in rest:
-        await _set_inventory(topic, t, "rest")
-    await db.set_step_status(topic, "Consolidation", "done")
-    return True
-
-
-async def _clarify_inventory(ctx: GenContext, set_p, files: dict) -> bool:
-    """A panel (KONSOLIDIERUNG_PANEL judges) decides on the rest (1×-mentioned): majority `aufnehmen`
-    → consensus, otherwise discarded. Panel instead of a single judge — the rest cut is the sharpest
-    intervention; a single judge is too unstable here. Conservative tie → keep (never lose a concept)."""
-    topic, provider, is_cancelled = ctx.topic, ctx.provider, ctx.is_cancelled
-    if await db.get_step_status(topic, "Clarification") == "done":
-        return True
-    set_p("Clarification running…", step=_step_idx(topic, "Clarification"))
-    rest_rows = await db.list_blocks(topic, status="rest")
-    # Continuous gate (EDC "Define"): also check consensus blocks with reference/placeholder titles
-    # ("Satz 7.18", "Korollar 6.18", "Bedingung (**)") — otherwise they bypass every exam.
-    suspicious = [b for b in await db.list_blocks(topic, status="consensus") if _is_reference(b["title"])]
-    check_rows = rest_rows + suspicious
-    if check_rows:
-        work_dir = files["arbeit"]
-        paths = [work_dir / f"clarification-j{j}.json" for j in range(1, CONSOLIDATION_PANEL + 1)]
-        # final=False: a judge with an accidentally non-empty `rest` must not fail entirely
-        # (otherwise the panel collapses to 1 judge). Its `aufnehmen` counts; rest entries count as
-        # not-accepted. The "rest empty" requirement still stands in the prompt.
-        pending = [(j, p) for j, p in enumerate(paths, 1) if _runde_schema(_json_file(p)) is None]
-        for _, p in pending:
-            p.unlink(missing_ok=True)
-        if pending:
-            slots = [{
-                "key": f"blocks-{topic}-clarification-j{j}",
-                "prompt": _prompt(
-                    "Blocks-Klaerung", topic=topic,
-                    rest="\n".join(f"- {b['title']} — {b['description']}" if b['description'] else f"- {b['title']}"
-                                   for b in check_rows),
-                    final="\n- Entscheide JEDEN Eintrag. `rest` MUSS leer sein.",
-                    out_path=p,
-                ),
-                "role": "judge", "capabilities": "files",
-                "payload": (lambda result, p=p: _runde_schema(_json_file(p))),
-            } for j, p in pending]
-            existing = CONSOLIDATION_PANEL - len(pending)
-            await _race(topic, "Clarification", slots, max(1, 2 - existing),
-                        _timeout("selection_mapping", len(check_rows)), provider, cancelled=is_cancelled, grace=CONSENSUS_GRACE)
-        if is_cancelled():
-            return False
-        outs = [r for p in paths if (r := _runde_schema(_json_file(p)))]
-        if not outs:
-            _blocks_errors[topic] = "Clarification failed"
-            return False
-        # Majority per rest entry (by norm title). Tie → keep (votes*2 >= n).
-        votes: dict[str, int] = {}
-        for accepted, _ in outs:
-            for nt in {_norm_title(_title(t)) for t in accepted}:
-                votes[nt] = votes.get(nt, 0) + 1
-        # Rename suggestions (additive from the raw JSON — _runde_schema doesn't know the field):
-        # kept reference/placeholder titles → meaningful name from the content. Old title norm
-        # stays stable (doesn't break the votes match); per old title the most frequent suggestion.
-        renames: dict[str, dict[str, int]] = {}
-        for p in paths:
-            d = _json_file(p)
-            rename_raw = d.get("rename") if isinstance(d, dict) else None
-            if isinstance(rename_raw, dict):
-                for old, new in rename_raw.items():
-                    new = str(new).strip()
-                    if new:
-                        renames.setdefault(_norm_title(str(old)), {}).setdefault(new, 0)
-                        renames[_norm_title(str(old))][new] += 1
-        seen_norm = {b["title_norm"] for b in await db.list_blocks(topic)}  # all stati: UNIQUE(topic,title_norm) spans every status, not just consensus
-        for b in check_rows:
-            accept = votes.get(b["title_norm"], 0) * 2 >= len(outs)
-            if not accept:
-                await db.set_block_status(topic, b["title_norm"], "discarded")
-                continue
-            new_title = None
-            if _is_reference(b["title"]) and (suggestions := renames.get(b["title_norm"])):
-                cands = max(suggestions, key=lambda k: (suggestions[k], len(k)))
-                if not _is_reference(cands):
-                    new_title = cands
-            if new_title:
-                nn, t, n = _norm_title(new_title), new_title, 2
-                while nn in seen_norm:
-                    t, nn, n = f"{new_title} ({n})", _norm_title(f"{new_title} ({n})"), n + 1
-                seen_norm.add(nn)
-                await db.set_block_status(topic, b["title_norm"], "consensus", title=t, neu_norm=nn)
+    result = []
+    for ci, members in enumerate(chains):
+        if len(members) == 1:
+            winner = members[0]
         else:
-                await db.set_block_status(topic, b["title_norm"], "consensus")
-    await db.set_step_status(topic, "Clarification", "done")
+            best = _naming_schema(_json_file(name_path(ci)), len(members))
+            if best is not None:
+                winner = members[best - 1]
+            else:  # judge failed → deterministic _canonical heuristic over the members
+                rep = _canonical([by_norm[nm] for nm in members], list(range(len(members))), set())
+                winner = _norm_title(rep["title"])
+                if winner not in members:
+                    winner = members[0]
+        result.append({"members": members, "winner": winner})
+    atomic_write_json(work_dir / "naming.json", {"chains": result}, indent=1)
+    _log(topic, f"Naming: {len(result)} chains named ({len(multi)} via judge)")
+    await db.set_step_status(topic, "Naming", "done")
+    return True
+
+
+async def _verify_naming(ctx: GenContext, set_p, files: dict) -> bool:
+    """Verify-Naming: a second judge checks each chain's chosen title and corrects it if another
+    member fits better. Updates naming.json. Singletons skipped."""
+    topic, is_cancelled = ctx.topic, ctx.is_cancelled
+    if await db.get_step_status(topic, "Verify-Naming") == "done":
+        return True
+    set_p("Verify-Naming…", step=_step_idx(topic, "Verify-Naming"))
+    work_dir = files["arbeit"]
+    by_norm = {r["title_norm"]: r for r in await db.list_blocks(topic)}
+    data = _json_file(work_dir / "naming.json")
+    chains = data.get("chains", []) if isinstance(data, dict) else []
+    multi = [(ci, [nm for nm in c.get("members", []) if nm in by_norm])
+             for ci, c in enumerate(chains) if len([nm for nm in c.get("members", []) if nm in by_norm]) > 1]
+    if not multi:
+        await db.set_step_status(topic, "Verify-Naming", "done")
+        return True
+
+    def check_path(ci): return work_dir / f"naming-check-c{ci}.json"
+
+    async def _check(ci, members, current):
+        fp = check_path(ci)
+        if _naming_schema(_json_file(fp), len(members)) is not None:
+            return  # resume
+        lines = "\n".join(f"{k + 1}. {by_norm[nm]['title']} — {by_norm[nm]['description']}"
+                          for k, nm in enumerate(members))
+        await run_single_slot(
+            ctx, f"Verify-Naming {ci}",
+            key=f"blocks-{topic}-naming-check-c{ci}",
+            prompt=_prompt("Blocks-Naming-Check", topic=topic, members=lines, current=current, out_path=fp),
+            role="judge", capabilities="files",
+            payload=lambda result, p=fp, n=len(members): _naming_schema(_json_file(p), n),
+            timeout=_timeout("selection_mapping", len(members)),
+        )
+
+    coros = []
+    for ci, members in multi:
+        cur = chains[ci].get("winner")
+        current = members.index(cur) + 1 if cur in members else 1
+        coros.append(_check(ci, members, current))
+    await _gather_progress(coros, len(multi), _report_p(set_p, topic, "Verify-Naming"))
+    if is_cancelled():
+        return False
+    changed = 0
+    for ci, members in multi:
+        best = _naming_schema(_json_file(check_path(ci)), len(members))
+        if best is not None and members[best - 1] != chains[ci].get("winner"):
+            chains[ci]["winner"] = members[best - 1]
+            changed += 1
+    atomic_write_json(work_dir / "naming-final.json", {"chains": chains}, indent=1)
+    _log(topic, f"Verify-Naming: {changed} titles corrected")
+    await db.set_step_status(topic, "Verify-Naming", "done")
+    return True
+
+
+async def _filter(ctx: GenContext, set_p, files: dict) -> bool:
+    """Filter (reduce): each chain collapses to its winner. Winner → status consensus (the final
+    block, keeping its own title/description/source), all other members → discarded. Candidates not
+    covered by any chain stay consensus (no concept loss). Pure Python, no LLM."""
+    topic = ctx.topic
+    if await db.get_step_status(topic, "Filter") == "done":
+        return True
+    set_p("Filter…", step=_step_idx(topic, "Filter"))
+    work_dir = files["arbeit"]
+    by_norm = {r["title_norm"]: r for r in await db.list_blocks(topic)}
+    data = _json_file(work_dir / "naming-final.json") or _json_file(work_dir / "naming.json")
+    chains = data.get("chains", []) if isinstance(data, dict) else []
+    if not chains:
+        _blocks_errors[topic] = "Filter: no chains"
+        return False
+    kept, seen = 0, set()
+    for chain in chains:
+        members = [nm for nm in chain.get("members", []) if nm in by_norm]
+        if not members:
+            continue
+        winner = chain.get("winner") if chain.get("winner") in members else members[0]
+        await db.set_block_status(topic, winner, "consensus")
+        seen.add(winner); kept += 1
+        for nm in members:
+            if nm != winner:
+                await db.set_block_status(topic, nm, "discarded")
+                seen.add(nm)
+    for nm in by_norm:  # safety: any uncovered candidate survives
+        if nm not in seen:
+            await db.set_block_status(topic, nm, "consensus")
+            kept += 1
+    _log(topic, f"Filter: {kept} final blocks (consensus)")
+    await db.set_step_status(topic, "Filter", "done")
     return True
 
 
@@ -2541,117 +2473,6 @@ def _cliques(n: int, edge_list: list[tuple[int, int]]) -> list[list[int]]:
     return groups
 
 
-def _filter_schema(data) -> dict[int, int] | None:
-    """{"fragments": {"3": 7, "12": 8}} → {block_nr: parent_nr} · None on invalid structure.
-    Empty dict = valid (nothing to degrade). Parent ≠ itself."""
-    if not isinstance(data, dict) or not isinstance(data.get("fragments"), dict):
-        return None
-    out: dict[int, int] = {}
-    for k, v in data["fragments"].items():
-        try:
-            nr, parent = int(k), int(v)
-        except (ValueError, TypeError):
-            continue
-        if nr != parent:
-            out[nr] = parent
-    return out
-
-
-# Pure notation/symbols without a standalone concept — kept narrow (FP~0, checked against aak;
-# "KNF"/"MST"/"NP" do NOT match). These are discarded autonomously (need no parent).
-_FILTER_NOTATION = re.compile(r'^\s*\|.{1,6}\|\s*$|^Güte\s+\d+\s*$')
-# Property/runtime suspicion — marks lines for the judge's verdict (NO auto-drop, FP too high:
-# "NP-Schwere", reductions with "∈NP" are real blocks). Complements _aspekt_marker.
-_FILTER_PREDICATE = re.compile(
-    r'ist NP-(vollständig|schwer)|NP-(Vollständigkeit|Schwere) von|ETH (Konsequenz|Lower Bound)'
-    r'|Approximationsschema nach|Laufzeit O\(|∈ ?NP', re.I)
-
-
-def _filter_suspect(b: dict) -> bool:
-    """Heuristic flag: could be a property/detail of another block."""
-    return _aspect_marker(b["title"]) > 0 or bool(_FILTER_PREDICATE.search(f"{b['title']} {b['description'] or ''}"))
-
-
-async def _filter_inventory(ctx: GenContext, set_p, files: dict) -> bool:
-    """Degrade pass (granularity): separates real blocks from fragments (properties,
-    proof gadgets, notation, runtime details). Each judge sees the FULL block list
-    (self-containment is relational) and marks fragments WITH a parent block from the list.
-    Fragment + parent-in-list → discarded (content comes back as a subblock of the parent).
-    No parent or in doubt → keep (no concept loss)."""
-    topic, is_cancelled = ctx.topic, ctx.is_cancelled
-    if await db.get_step_status(topic, "Blocks-Filter") == "done":
-        return True
-    set_p("Blocks-Filter…", step=_step_idx(topic, "Blocks-Filter"))
-    work_dir = files["arbeit"]
-    consensus_all = await db.list_blocks(topic, status="consensus")
-    # Safety net: discard pure notation autonomously (FP~0, no parent needed). The judge
-    # reliably overlooks such symbols (recall problem), hence deterministically beforehand.
-    consensus, notation_dropped = [], []
-    for b in consensus_all:
-        if _FILTER_NOTATION.search(b["title"]):
-            await db.set_block_status(topic, b["title_norm"], "discarded")
-            notation_dropped.append(b["title"])
-        else:
-            consensus.append(b)
-    if notation_dropped:
-        _log(topic, f"Blocks-Filter: {len(notation_dropped)} pure notation discarded: {notation_dropped[:6]}")
-    if len(consensus) < 2:
-        await db.set_step_status(topic, "Blocks-Filter", "done")
-        return True
-    n = len(consensus)
-    # ⚠ marks suspicious lines (property/runtime) — the judge MUST check them per entry.
-    def _line(i, b):
-        mark = "⚠ " if _filter_suspect(b) else ""
-        return f"{i}. {mark}{b['title']} — {b['description']}" if b["description"] else f"{i}. {mark}{b['title']}"
-    full_list = "\n".join(_line(i, b) for i, b in enumerate(consensus, 1))
-    chunks = [list(range(i, min(i + FILTER_CHUNK, n + 1))) for i in range(1, n + 1, FILTER_CHUNK)]
-
-    def filt_path(ci): return work_dir / f"inventar-filter-c{ci}.json"
-
-    async def _assess(ci, numbers):
-        fp = filt_path(ci)
-        if _filter_schema(_json_file(fp)) is not None:
-            return  # resume
-        await run_single_slot(
-            ctx, f"Blocks-Filter {ci}",
-            key=f"blocks-{topic}-inventar-filter-c{ci}",
-            prompt=_prompt("Blocks-Filter", topic=topic, list=full_list,
-                           from_n=numbers[0], to_n=numbers[-1], out_path=fp),
-            role="judge", capabilities="files",
-            payload=lambda result, p=fp: _filter_schema(_json_file(p)),
-            timeout=_timeout("selection_mapping", len(numbers)),
-        )
-
-    await _gather_progress([_assess(ci, nm) for ci, nm in enumerate(chunks)],
-                              len(chunks), _report_p(set_p, topic, "Blocks-Filter"))
-    if is_cancelled():
-        return False
-    fragments: dict[int, int] = {}
-    for ci, numbers in enumerate(chunks):
-        verdict = _filter_schema(_json_file(filt_path(ci))) or {}
-        nset = set(numbers)
-        for nr, parent in verdict.items():
-            if 1 <= parent <= n and nr in nset:
-                fragments[nr] = parent
-    # Chain protection: a block that is itself the parent of a fragment stays (its child needs the anchor).
-    parent_set = set(fragments.values())
-    removed, debug = 0, []
-    for nr, parent in fragments.items():
-        if nr in parent_set:
-            continue
-        b = consensus[nr - 1]
-        await db.set_block_status(topic, b["title_norm"], "discarded")
-        removed += 1
-        debug.append({"fragment": b["title"], "eltern": consensus[parent - 1]["title"]})
-    atomic_write_json(work_dir / "inventar-filter.json",
-                      {"vorher": n, "degradiert": removed, "fragments": debug}, indent=1)
-    _log(topic, f"Blocks-Filter: {n} → {n - removed} (−{removed} fragments → subblocks)")
-    await db.set_step_status(topic, "Blocks-Filter", "done")
-    return True
-
-
-# --- Outline (blocks artifact: chapter structure, only read by the guide) ---
-
 def _outline_complete(files: dict) -> bool:
     """Is the outline present (chapter list exists)?"""
     d = _json_file(files["outline"])
@@ -3043,13 +2864,14 @@ async def _reset_db_from_phase(topic: str, label: str) -> None:
         await db.delete_subblocks(topic)
     if idx <= 1:  # Inventory: inventory + research steps — triage stays
         await db.delete_blocks(topic)
-        await db.delete_pipeline_state(topic, ["Research", "Consolidation", "Clarification", "Blocks-Filter"])
+        await db.kanban_reset(topic)
+        await db.delete_pipeline_state(topic, list(INVENTORY_STEPS))
     if idx <= 0:  # Source: redo triage (coverage/content + step)
         await db.delete_coverage(topic)
         await db.delete_pipeline_state(topic, ["Source prep"])
 
 
-async def generate_blocks(topic: str, instructions: str = "", provider: str = DEFAULT_PROVIDER, ab_phase: int | None = None, ab_step: int | None = None, to_step: int | None = None) -> None:
+async def generate_blocks(topic: str, instructions: str = "", provider: str = DEFAULT_PROVIDER, ab_phase: int | None = None, ab_step: int | None = None, to_step: int | None = None, research: bool = True) -> None:
     if topic in _blocks_progress:
         return
     _blocks_progress[topic] = "Waiting…"
@@ -3104,31 +2926,27 @@ async def generate_blocks(topic: str, instructions: str = "", provider: str = DE
             # sidecar) → complete fresh start. If blocks.md exists without the sidecar,
             # it's a partial state (block B/C open) → resume, don't wipe.
             # On an explicit re-run (ab_phase) _reset_ab_phase already handled that.
-            done = ab_phase is None and ab_step is None and final_path.exists() and _sidecar_schema(_json_file(files["sidecar"])) is not None
+            # "Continue" (research=False) is non-destructive: never wipe a finished topic.
+            done = research and ab_phase is None and ab_step is None and final_path.exists() and _sidecar_schema(_json_file(files["sidecar"])) is not None
             if done:
                 for p_old in _all_slot_files(files):
                     p_old.unlink(missing_ok=True)
                 await db.delete_pipeline_state(topic)
                 await db.delete_blocks(topic)
+                await db.kanban_reset(topic)
                 await db.delete_subblocks(topic)
                 await db.delete_question_pattern(topic)
                 await db.delete_coverage(topic)
                 await db.delete_outline(topic)
                 await db.delete_sub_artefakte(topic)
 
-            # Inventory (DB): research loop → consolidation → clarification.
-            if _past_limit("Research"): return
-            if not await _stage(_research_batch(ctx, set_p, files, q, folder, instructions)):
-                return
-            if _past_limit("Consolidation"): return
-            if not await _stage(_consolidate(ctx, set_p, files)):
-                return
-            if _past_limit("Clarification"): return
-            if not await _stage(_clarify_inventory(ctx, set_p, files)):
-                return
-            if _past_limit("Blocks-Filter"): return
-            if not await _stage(_filter_inventory(ctx, set_p, files)):
+            # Inventory: streaming kanban dataflow — its columns ARE the inventory steps (pills).
+            # One streaming run (cards, not discrete steps); per-column regenerate is not meaningful.
+            import kanban  # lazy import: avoids a module-level cycle (kanban imports blocks)
+            if not await _stage(kanban.run_kanban(ctx, set_p, files, q, folder, instructions, research=research)):
                 return
+            for _s in INVENTORY_STEPS:  # mark all columns done so the step pills show complete
+                await db.set_step_status(topic, _s, "done")
             consensus_rows = await db.list_blocks(topic, status="consensus")
             entries = {
                 i: (f"{b['title']} — {b['description']}" if b["description"] else b["title"])

backend/config.py

@@ -55,6 +55,9 @@ MAX_CONCURRENT_AGENTS = int(os.getenv("MAX_CONCURRENT_AGENTS", "10"))
 MAX_CONCURRENT_AGENTS_PER_TOPIC = int(os.getenv("MAX_CONCURRENT_AGENTS_PER_TOPIC", "10"))  # per topic
 MAX_CONCURRENT_INTERACTIVE = 8
 
+# Inventory engine: streaming kanban dataflow (kanban.py) is the default; set "0" for the legacy ER pipeline.
+KANBAN_INVENTORY = os.getenv("KANBAN_INVENTORY", "1") != "0"
+
 # Grace window of the consensus races (blocks, guide, OnePager): after the first
 # valid result the remaining agents may still become done for this many seconds
 # (kill only once the minimum is already in).

backend/database.py

@@ -199,6 +199,59 @@ CREATE TABLE IF NOT EXISTS sub_artefakte (
 )
 """
 
+# Kanban streaming dataflow for the inventory phase. Cards (titles → chains → blocks) flow through
+# columns; `stage` is the current/next column (the queue of a worker = WHERE stage = <predecessor>).
+# `stage` is used instead of the reserved word `column`. chain_id/block_id are stable → upsert, not dup.
+CREATE_KANBAN_TITLES = """
+CREATE TABLE IF NOT EXISTS kanban_titles (
+    topic TEXT NOT NULL,
+    title_norm TEXT NOT NULL,
+    title TEXT NOT NULL,
+    source TEXT NOT NULL DEFAULT '',
+    content TEXT NOT NULL DEFAULT '',
+    stage TEXT NOT NULL DEFAULT 'merge',
+    updated_at TEXT NOT NULL,
+    PRIMARY KEY (topic, title_norm)
+)
+"""
+
+CREATE_KANBAN_CHAINS = """
+CREATE TABLE IF NOT EXISTS kanban_chains (
+    topic TEXT NOT NULL,
+    chain_id TEXT NOT NULL,
+    stage TEXT NOT NULL DEFAULT 'chain_verify',
+    main_title_norm TEXT,
+    dirty INTEGER NOT NULL DEFAULT 0,
+    updated_at TEXT NOT NULL,
+    PRIMARY KEY (topic, chain_id)
+)
+"""
+
+CREATE_KANBAN_CHAIN_MEMBERS = """
+CREATE TABLE IF NOT EXISTS kanban_chain_members (
+    topic TEXT NOT NULL,
+    chain_id TEXT NOT NULL,
+    title_norm TEXT NOT NULL,
+    PRIMARY KEY (topic, title_norm)
+)
+"""
+
+CREATE_KANBAN_BLOCKS = """
+CREATE TABLE IF NOT EXISTS kanban_blocks (
+    topic TEXT NOT NULL,
+    block_id TEXT NOT NULL,
+    chain_id TEXT,
+    title TEXT NOT NULL,
+    source TEXT NOT NULL DEFAULT '',
+    content TEXT NOT NULL DEFAULT '',
+    stage TEXT NOT NULL DEFAULT 'small_blocks',
+    is_small INTEGER NOT NULL DEFAULT 0,
+    parent_block_id TEXT,
+    updated_at TEXT NOT NULL,
+    PRIMARY KEY (topic, block_id)
+)
+"""
+
 _db: aiosqlite.Connection | None = None
 
 
@@ -230,6 +283,10 @@ async def init_db():
     await db.execute(CREATE_SOURCE)
     await db.execute(CREATE_GUIDE_OUTLINE)
     await db.execute(CREATE_SUB_ARTEFAKTE)
+    await db.execute(CREATE_KANBAN_TITLES)
+    await db.execute(CREATE_KANBAN_CHAINS)
+    await db.execute(CREATE_KANBAN_CHAIN_MEMBERS)
+    await db.execute(CREATE_KANBAN_BLOCKS)
     try:  # migration for existing DBs without the step column
         await db.execute("ALTER TABLE guides ADD COLUMN step INTEGER")
     except aiosqlite.OperationalError:
@@ -706,6 +763,144 @@ async def delete_blocks(topic: str) -> None:
     await db.commit()
 
 
+# ── Kanban streaming dataflow (inventory) ───────────────────────────────────────
+# Generic stage helpers. `stage` is the queue key: a worker pulls WHERE stage = <its input stage>.
+_KANBAN_ID = {"kanban_titles": "title_norm", "kanban_chains": "chain_id", "kanban_blocks": "block_id"}
+
+
+async def kanban_pull(topic: str, table: str, stage: str, limit: int) -> list[dict]:
+    """Oldest `limit` cards sitting in `stage` (FIFO via updated_at)."""
+    idc = _KANBAN_ID[table]  # validates table name
+    db = await get_db()
+    cursor = await db.execute(
+        f"SELECT * FROM {table} WHERE topic = ? AND stage = ? ORDER BY updated_at LIMIT ?", (topic, stage, limit))
+    rows = await cursor.fetchall()
+    return [_row_to_dict(row, cursor) for row in rows]
+
+
+async def kanban_count(topic: str, table: str, stages) -> int:
+    """How many cards sit in any of `stages` (str or list) — for queue length / quiescence."""
+    _ = _KANBAN_ID[table]
+    if isinstance(stages, str):
+        stages = [stages]
+    if not stages:
+        return 0
+    db = await get_db()
+    ph = ",".join("?" * len(stages))
+    cursor = await db.execute(f"SELECT count(*) FROM {table} WHERE topic = ? AND stage IN ({ph})", (topic, *stages))
+    return (await cursor.fetchone())[0]
+
+
+async def kanban_advance(topic: str, table: str, id_val: str, stage: str) -> None:
+    """Move a card to `stage` (advance to next column, or back for rework/retraction)."""
+    idc = _KANBAN_ID[table]
+    db = await get_db()
+    await db.execute(f"UPDATE {table} SET stage = ?, updated_at = ? WHERE topic = ? AND {idc} = ?",
+                     (stage, _now(), topic, id_val))
+    await db.commit()
+
+
+async def kanban_add_title(topic: str, title_norm: str, title: str, source: str = "", content: str = "") -> bool:
+    """Research → titles queue (stage 'merge'). Exact dupes are dropped (PK conflict). → True if new."""
+    db = await get_db()
+    cursor = await db.execute(
+        """INSERT INTO kanban_titles (topic, title_norm, title, source, content, stage, updated_at)
+           VALUES (?, ?, ?, ?, ?, 'merge', ?) ON CONFLICT(topic, title_norm) DO NOTHING""",
+        (topic, title_norm, title, source, content, _now()))
+    await db.commit()
+    return cursor.rowcount > 0
+
+
+async def kanban_upsert_chain(topic: str, chain_id: str, stage: str, main_title_norm: str | None = None,
+                                 dirty: int = 0) -> None:
+    db = await get_db()
+    await db.execute(
+        """INSERT INTO kanban_chains (topic, chain_id, stage, main_title_norm, dirty, updated_at)
+           VALUES (?, ?, ?, ?, ?, ?)
+           ON CONFLICT(topic, chain_id) DO UPDATE SET
+               stage = excluded.stage, main_title_norm = COALESCE(excluded.main_title_norm, kanban_chains.main_title_norm),
+               dirty = excluded.dirty, updated_at = excluded.updated_at""",
+        (topic, chain_id, stage, main_title_norm, dirty, _now()))
+    await db.commit()
+
+
+async def kanban_set_chain_members(topic: str, chain_id: str, members: list[str]) -> None:
+    """Replace the member set of a chain (one title belongs to exactly one chain)."""
+    db = await get_db()
+    await db.execute("DELETE FROM kanban_chain_members WHERE topic = ? AND chain_id = ?", (topic, chain_id))
+    for nm in members:
+        await db.execute(
+            """INSERT INTO kanban_chain_members (topic, chain_id, title_norm) VALUES (?, ?, ?)
+               ON CONFLICT(topic, title_norm) DO UPDATE SET chain_id = excluded.chain_id""",
+            (topic, chain_id, nm))
+    await db.commit()
+
+
+async def kanban_chain_members(topic: str, chain_id: str) -> list[str]:
+    db = await get_db()
+    cursor = await db.execute(
+        "SELECT title_norm FROM kanban_chain_members WHERE topic = ? AND chain_id = ?", (topic, chain_id))
+    return [r[0] for r in await cursor.fetchall()]
+
+
+async def kanban_member_chain(topic: str, title_norm: str) -> str | None:
+    """Which chain a title currently belongs to (or None)."""
+    db = await get_db()
+    cursor = await db.execute(
+        "SELECT chain_id FROM kanban_chain_members WHERE topic = ? AND title_norm = ?", (topic, title_norm))
+    row = await cursor.fetchone()
+    return row[0] if row else None
+
+
+async def kanban_upsert_block(topic: str, block_id: str, chain_id: str | None, title: str, source: str = "",
+                                 content: str = "", stage: str = "small_blocks", is_small: int = 0,
+                                 parent_block_id: str | None = None) -> None:
+    """Chain-id-stable block (Filter/Block). Upsert → growing chains overwrite, never duplicate."""
+    db = await get_db()
+    await db.execute(
+        """INSERT INTO kanban_blocks (topic, block_id, chain_id, title, source, content, stage, is_small, parent_block_id, updated_at)
+           VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+           ON CONFLICT(topic, block_id) DO UPDATE SET
+               chain_id = excluded.chain_id, title = excluded.title, source = excluded.source,
+               content = excluded.content, stage = excluded.stage, is_small = excluded.is_small,
+               parent_block_id = excluded.parent_block_id, updated_at = excluded.updated_at""",
+        (topic, block_id, chain_id, title, source, content, stage, is_small, parent_block_id, _now()))
+    await db.commit()
+
+
+async def kanban_titles_by_norm(topic: str) -> dict[str, dict]:
+    """All titles of a topic keyed by title_norm (the candidate universe for chaining)."""
+    db = await get_db()
+    cursor = await db.execute("SELECT * FROM kanban_titles WHERE topic = ?", (topic,))
+    rows = await cursor.fetchall()
+    return {(d := _row_to_dict(row, cursor))["title_norm"]: d for row in rows}
+
+
+async def kanban_all_blocks(topic: str) -> list[dict]:
+    db = await get_db()
+    cursor = await db.execute("SELECT * FROM kanban_blocks WHERE topic = ?", (topic,))
+    rows = await cursor.fetchall()
+    return [_row_to_dict(row, cursor) for row in rows]
+
+
+async def kanban_stage_counts(topic: str) -> dict[str, int]:
+    """{stage: count} across all kanban tables — for the live board / quiescence."""
+    db = await get_db()
+    out: dict[str, int] = {}
+    for table in ("kanban_titles", "kanban_chains", "kanban_blocks"):
+        cursor = await db.execute(f"SELECT stage, count(*) FROM {table} WHERE topic = ? GROUP BY stage", (topic,))
+        for stage, n in await cursor.fetchall():
+            out[stage] = out.get(stage, 0) + n
+    return out
+
+
+async def kanban_reset(topic: str) -> None:
+    db = await get_db()
+    for table in ("kanban_titles", "kanban_chains", "kanban_chain_members", "kanban_blocks"):
+        await db.execute(f"DELETE FROM {table} WHERE topic = ?", (topic,))
+    await db.commit()
+
+
 async def upsert_subblock(topic: str, block_norm: str, sub_norm: str, block: str, sub_title: str) -> None:
     db = await get_db()
     await db.execute(

backend/kanban.py

@@ -0,0 +1,748 @@
+"""Streaming kanban dataflow for the inventory phase.
+
+Each column is a worker that pulls cards from its input `stage` (the queue), processes up to
+KANBAN_BATCH at a time, and advances them to the next stage. Cards: titles → chains → blocks.
+
+Streaming columns run continuously; barrier columns start only at QUIESCENCE of everything before
+them (no active worker + empty queues). Verify columns push failures back (rework). The Chain column
+re-clusters live: a chain that gains a member is marked dirty and flows back to chain_verify.
+
+Reused from blocks.py (imported lazily-safe — kanban is only imported after blocks is loaded):
+embedding clustering, `_pairs_schema`/`_cliques`, `_canonical`, research prompt + file payload.
+"""
+
+import asyncio
+import json
+import uuid
+
+import database as db
+import embedding
+import blocks
+from config import RESEARCH_GRACE, MAX_CONCURRENT_AGENTS_PER_TOPIC
+from pipeline import GenContext, run_single_slot, _prompt, _timeout, _log, OK
+from textkit import _norm_title, _title, _parse_selection
+from jsonio import read_json_file as _json_file
+
+KANBAN_BATCH = 5          # cards a worker pulls per package (micro-batching)
+# How many packages ONE worker keeps in flight at once. A worker no longer blocks on a single
+# package — it keeps pulling and dispatching until this many run concurrently, so a busy column
+# fills the agent slots (the per-topic semaphore is the real cap; over-dispatch just queues cheaply).
+WORKER_INFLIGHT = MAX_CONCURRENT_AGENTS_PER_TOPIC
+# Stages whose processor mutates shared cross-card state and MUST run one package at a time.
+# Online chain-clustering reads the whole universe + membership; parallel packages would race.
+_SERIAL_STAGES = {"chain"}
+_ID_COL = {"kanban_titles": "title_norm", "kanban_chains": "chain_id", "kanban_blocks": "block_id"}
+CHAIN_CAP = 12            # max members per chain — caps the O(n²) pair-verification blow-up
+_POLL = 0.3               # seconds between empty-queue polls
+
+# Stage order. A card's `stage` = the column it waits in (its worker's input).
+TITLE_STAGES = ["merge", "chain", "chained"]                 # 'chained' = consumed into a chain
+CHAIN_STAGES = ["chain_verify", "naming", "naming_verify", "chain_filter", "filter_verify", "block_assemble"]
+BLOCK_STAGES = ["small_blocks", "small_verify", "dependency", "dependency_verify", "main"]
+DONE_CHAIN = "done_chain"
+DONE_BLOCK = "done_block"
+REJECTED = "rejected"     # block dropped by filter_verify (off-topic / noise) — terminal, never mirrored
+
+# Predecessor stages for each barrier (must ALL be quiescent before the barrier worker runs).
+_BEFORE_CHAIN_FILTER = ["merge", "chain", "chain_verify", "naming", "naming_verify"]
+_BEFORE_BLOCK = _BEFORE_CHAIN_FILTER + ["chain_filter", "filter_verify"]
+_BEFORE_MAIN = ["small_blocks", "small_verify", "dependency", "dependency_verify"]
+
+
+class _Flow:
+    """Shared runtime state: active-task counters per stage + a wakeup event. `producers` counts the
+    running research agents (initial + any added live via the generate button); research counts as
+    done only when ALL producers have finished, so the flow stays awake while extras still search."""
+    def __init__(self, topic: str, work_dir):
+        self.topic = topic
+        self.work_dir = work_dir
+        self.active: dict[str, int] = {}
+        self.producers = 1          # the initial research agent
+        self.research_tag = 0
+        self.stop = False
+        self.wake = asyncio.Event()
+        self.spawn_research = None  # set by run_kanban: () → coroutine that adds one more research agent
+
+    @property
+    def research_done(self) -> bool:
+        return self.producers <= 0
+
+    def add_producer(self):
+        self.producers += 1
+        self.wake.set()
+
+    def done_producer(self):
+        self.producers -= 1
+        self.wake.set()
+
+    def next_tag(self) -> int:
+        self.research_tag += 1
+        return self.research_tag
+
+    def enter(self, stage: str):
+        self.active[stage] = self.active.get(stage, 0) + 1
+
+    def leave(self, stage: str):
+        self.active[stage] = max(0, self.active.get(stage, 0) - 1)
+        self.wake.set()
+
+    def active_in(self, stages) -> bool:
+        return any(self.active.get(s, 0) > 0 for s in stages)
+
+    async def queued_in(self, table: str, stages) -> bool:
+        return await db.kanban_count(self.topic, table, list(stages)) > 0
+
+
+# ── Research producer ────────────────────────────────────────────────────────────
+async def _ingest_titles(topic: str, text: str) -> int:
+    """Parse a reader file into kanban_titles (stage 'merge'). Exact dupes drop on the PK. → new count."""
+    n, seen = 0, set()
+    for record in _parse_selection(text).values():
+        title = _title(record)
+        norm = _norm_title(title)
+        if not norm or norm in seen:
+            continue
+        seen.add(norm)
+        parts = [t.strip() for t in record.split(" — ")]
+        source = parts[2] if len(parts) >= 3 else ""
+        desc = parts[1] if len(parts) >= 2 else ""
+        if await db.kanban_add_title(topic, norm, title, source, desc):
+            n += 1
+    return n
+
+
+RESEARCH_RUNTIME = 900  # one research agent, one round, ~15 min hard cap — the tail ingests live while it writes
+_POLL_RESEARCH = 3      # seconds between live reads of a running research file
+
+# Live registry of running flows, so the "+ research" button can attach another agent to a live run.
+_active_flows: dict[str, "_Flow"] = {}
+
+
+def _extract_text(raw_line: str) -> str:
+    """Best-effort: pull assistant/tool text out of ONE opencode `--format json` event line.
+    Recursively collects every `text`/`content` string — robust to the exact event schema."""
+    try:
+        obj = json.loads(raw_line)
+    except Exception:
+        return ""
+    parts: list[str] = []
+    def _walk(o):
+        if isinstance(o, dict):
+            for k, v in o.items():
+                if k in ("text", "content") and isinstance(v, str):
+                    parts.append(v)
+                else:
+                    _walk(v)
+        elif isinstance(o, list):
+            for v in o:
+                _walk(v)
+    _walk(obj)
+    return "".join(parts)
+
+
+async def _research_once(ctx: GenContext, files: dict, q: dict, folder, instructions: str, tag: str, flow: "_Flow"):
+    """ONE agent searches the topic; its titles go into the merge queue LIVE. Two sources feed the
+    ingest: the JSON event stream (on_line → text buffer) AND the file the agent writes — whichever
+    the agent uses, cards stream in immediately (not only after it finishes)."""
+    work_dir = files["arbeit"]
+    caps = "files" if folder else "full"
+    p = work_dir / f"research-{tag}.md"
+    p.unlink(missing_ok=True)
+    stop = asyncio.Event()
+    buf: list[str] = []  # assistant text streamed live from the JSON events
+
+    def _on_line(raw: str):  # sync, called per stdout line by the agent runner
+        if (t := _extract_text(raw)):
+            buf.append(t)
+
+    async def _drain() -> bool:  # ingest from BOTH event buffer and file (idempotent, dupes drop on PK)
+        text = "".join(buf)
+        if (ft := blocks._file_payload(p)):
+            text += "\n" + ft
+        return bool(text) and await _ingest_titles(ctx.topic, text)
+
+    async def _tail():  # live-ingest loop while the agent runs
+        while not stop.is_set():
+            try:
+                await asyncio.wait_for(stop.wait(), timeout=_POLL_RESEARCH)
+            except asyncio.TimeoutError:
+                pass
+            if await _drain():
+                flow.wake.set()  # new cards → wake the workers
+
+    tail = asyncio.create_task(_tail())
+    try:
+        await run_single_slot(
+            ctx, f"research-{tag}", key=f"blocks-{ctx.topic}-research-{tag}",
+            prompt=blocks._build_research_prompt(ctx.topic, p, instructions, q["type"], folder),
+            role="quick", capabilities=caps,
+            payload=(lambda result, p=p: blocks._file_payload(p)),
+            timeout=RESEARCH_RUNTIME, on_line=_on_line,
+        )
+    finally:
+        stop.set()
+        await tail
+    if await _drain():  # final catch-up
+        flow.wake.set()
+    _log(ctx.topic, f"Research {tag}: titles → merge queue")
+
+
+async def _research(ctx: GenContext, files: dict, q: dict, folder, instructions: str, flow: _Flow):
+    """The initial research producer (already counted in flow.producers=1)."""
+    try:
+        await _research_once(ctx, files, q, folder, instructions, "1", flow)
+    finally:
+        flow.done_producer()
+
+
+async def _extra_research(ctx: GenContext, files: dict, q: dict, folder, instructions: str, flow: _Flow):
+    """One more research agent, added live via the generate button. Keeps the flow awake until done."""
+    flow.add_producer()
+    try:
+        await _research_once(ctx, files, q, folder, instructions, f"x{flow.next_tag()}", flow)
+    finally:
+        flow.done_producer()
+
+
+def add_research_agent(topic: str) -> bool:
+    """Attach one more research agent to a running flow. → True if a run was live to attach to."""
+    flow = _active_flows.get(topic)
+    if flow is None or flow.stop or flow.spawn_research is None:
+        return False
+    asyncio.create_task(flow.spawn_research())
+    return True
+
+
+# ── Generic worker loop ────────────────────────────────────────────────────────────
+async def _quiescent(flow: _Flow, stages) -> bool:
+    """True iff no worker is active in `stages` AND no card is queued in any of them (all tables).
+    The barrier/exit condition — must include QUEUED cards, not just active workers, or a worker
+    could exit in a momentary lull while an upstream worker still has work to push down."""
+    if not stages:
+        return True
+    if flow.active_in(stages):
+        return False
+    for tb in ("kanban_titles", "kanban_chains", "kanban_blocks"):
+        if await db.kanban_count(flow.topic, tb, list(stages)):
+            return False
+    return True
+
+
+async def _worker(flow: _Flow, table: str, in_stage: str, process, upstream, *, barrier=False, inflight=WORKER_INFLIGHT):
+    """Pull cards from `in_stage`, run `process` — keeping up to `inflight` packages running CONCURRENTLY
+    so a busy column fills the agent slots instead of doing one package at a time. `upstream` = all stages
+    before this one. A barrier worker only pulls when `upstream` is fully quiescent. ANY worker exits only
+    when research is done, its own queue is empty, AND `upstream` is quiescent (nothing can still arrive).
+
+    Double-pull safety: each stage has exactly ONE worker, so an in-memory `claimed` set of card-ids (held
+    while a package runs) is enough to keep concurrent pulls from grabbing the same cards."""
+    topic = flow.topic
+    idc = _ID_COL[table]
+    claimed: set[str] = set()
+    tasks: set[asyncio.Task] = set()
+
+    async def _run(cards):
+        ids = [c[idc] for c in cards]
+        flow.enter(in_stage)
+        try:
+            await process(cards)
+        except Exception as e:  # one bad package must not kill the worker
+            _log(topic, f"worker {in_stage}: {type(e).__name__}: {e}")
+        finally:
+            flow.leave(in_stage)
+            for i in ids:
+                claimed.discard(i)
+            flow.wake.set()
+
+    try:
+        while not flow.stop:
+            tasks = {t for t in tasks if not t.done()}
+            # Fill the pipeline: pull fresh cards and dispatch until `inflight` packages run.
+            if not barrier or await _quiescent(flow, upstream):
+                while len(tasks) < inflight:
+                    rows = await db.kanban_pull(topic, table, in_stage, KANBAN_BATCH + len(claimed))
+                    fresh = [r for r in rows if r[idc] not in claimed][:KANBAN_BATCH]
+                    if not fresh:
+                        break
+                    for r in fresh:
+                        claimed.add(r[idc])
+                    tasks.add(asyncio.create_task(_run(list(fresh))))
+            if tasks:  # busy → wait for a package to finish, then refill
+                await asyncio.wait(tasks, timeout=_POLL, return_when=asyncio.FIRST_COMPLETED)
+                continue
+            # idle: nothing in flight and nothing pulled
+            up_quiet = await _quiescent(flow, upstream)
+            if (flow.research_done and up_quiet and not flow.active_in([in_stage])
+                    and await db.kanban_count(topic, table, in_stage) == 0):
+                return  # nothing left and nothing upstream can produce
+            await _sleep_wake(flow)
+    finally:
+        for t in tasks:
+            t.cancel()
+        if tasks:
+            await asyncio.gather(*tasks, return_exceptions=True)
+
+
+async def _sleep_wake(flow: _Flow):
+    try:
+        await asyncio.wait_for(flow.wake.wait(), timeout=_POLL)
+    except asyncio.TimeoutError:
+        pass
+    flow.wake.clear()
+
+
+# ── Column processors ──────────────────────────────────────────────────────────────
+async def _proc_merge(flow: _Flow, cards):
+    """Exact dedup happened at ingest (PK). Merge just advances titles to the chain column."""
+    for c in cards:
+        await db.kanban_advance(flow.topic, "kanban_titles", c["title_norm"], "chain")
+    flow.wake.set()
+
+
+async def _proc_chain(flow: _Flow, cards):
+    """Embedding blocking: for each new title, find the most similar existing title (cosine ≥ floor).
+    Join its chain (or open a new one), mark the chain dirty → chain_verify. Live-growing clusters."""
+    topic = flow.topic
+    by_norm = await db.kanban_titles_by_norm(topic)
+    # Universe = titles already chained + the new batch (for nearest-neighbour search).
+    universe = [nm for nm, r in by_norm.items() if r["stage"] in ("chain", "chained")]
+    if len(universe) < 1:
+        return
+    texts = [f"{by_norm[nm]['title']} — {by_norm[nm]['content']}" if by_norm[nm]["content"] else by_norm[nm]["title"]
+             for nm in universe]
+    sims = await asyncio.to_thread(embedding.embed_sims, texts) if (
+        embedding and await asyncio.to_thread(embedding.available)) else None
+    idx = {nm: i for i, nm in enumerate(universe)}
+    # existing membership
+    member_chain = {}
+    for nm in universe:
+        cid = await _chain_of(topic, nm)
+        if cid:
+            member_chain[nm] = cid
+    touched = set()
+    for c in cards:
+        nm = c["title_norm"]
+        target = None
+        if sims is not None and nm in idx:
+            best, bestcos = None, blocks.DEDUP_PAIR_FLOOR
+            for other in universe:
+                if other == nm or other not in member_chain and other not in idx:
+                    continue
+                cos = float(sims[idx[nm]][idx[other]]) if other in idx else -1
+                if cos >= bestcos and other != nm:
+                    best, bestcos = other, cos
+            if best is not None:
+                target = member_chain.get(best)
+        cid = target or f"c-{uuid.uuid4().hex[:12]}"
+        members = set(await db.kanban_chain_members(topic, cid))
+        if target and len(members) >= CHAIN_CAP:   # neighbour's chain is full → start a fresh chain
+            cid = f"c-{uuid.uuid4().hex[:12]}"
+            members = set()
+        members.add(nm)
+        await db.kanban_set_chain_members(topic, cid, sorted(members))
+        await db.kanban_upsert_chain(topic, cid, "chain_verify", dirty=1)
+        member_chain[nm] = cid
+        await db.kanban_advance(topic, "kanban_titles", nm, "chained")
+        touched.add(cid)
+    flow.wake.set()
+
+
+async def _chain_of(topic: str, title_norm: str) -> str | None:
+    return await db.kanban_member_chain(topic, title_norm)
+
+
+async def _members_dicts(topic: str, members: list[str]) -> list[dict]:
+    by = await db.kanban_titles_by_norm(topic)
+    return [by[m] for m in members if m in by]
+
+
+async def _proc_chain_verify(ctx: GenContext, flow: _Flow, cards):
+    """Pairwise-verify the batch's chains IN PARALLEL (one agent per chain). Failures split off."""
+    await asyncio.gather(*[_verify_one(ctx, flow, c) for c in cards], return_exceptions=True)
+    flow.wake.set()
+
+
+async def _verify_one(ctx: GenContext, flow: _Flow, c):
+    topic = flow.topic
+    cid = c["chain_id"]
+    members = await db.kanban_chain_members(topic, cid)
+    dicts = await _members_dicts(topic, members)
+    if len(dicts) <= 1:
+        await db.kanban_upsert_chain(topic, cid, "naming", dirty=0)
+        return
+    # Only the embedding-NEAR candidate pairs (cosine ≥ floor) — NOT all O(n²) pairs. A 12-member
+    # chain shrinks from 66 pairs to a handful. Transitivity (connected components) does the rest.
+    nm = [d["title_norm"] for d in dicts]
+    texts = [f"{d['title']} — {d['content']}" if d["content"] else d["title"] for d in dicts]
+    sims = await asyncio.to_thread(embedding.embed_sims, texts) if (
+        embedding and await asyncio.to_thread(embedding.available)) else None
+    if sims is not None:
+        pairs = [(nm[i], nm[j]) for i in range(len(nm)) for j in range(i + 1, len(nm))
+                 if float(sims[i][j]) >= blocks.DEDUP_PAIR_FLOOR]
+    else:
+        pairs = [(a, b) for x, a in enumerate(members) for b in members[x + 1:]]
+    keep_edges = await _verify_pairs(ctx, flow.work_dir, topic, cid, dicts, pairs)
+    groups = _components(members, keep_edges)  # transitive groups over confirmed near-pairs
+    groups.sort(key=len, reverse=True)
+    main = groups[0] if groups else members
+    await db.kanban_set_chain_members(topic, cid, sorted(main))
+    await db.kanban_upsert_chain(topic, cid, "naming", dirty=0)
+    for g in groups[1:]:  # the rest split into fresh chains
+        ncid = f"c-{uuid.uuid4().hex[:12]}"
+        await db.kanban_set_chain_members(topic, ncid, sorted(g))
+        await db.kanban_upsert_chain(topic, ncid, "naming", dirty=0)
+
+
+def _components(members: list[str], edges) -> list[list[str]]:
+    """Connected components (union-find) over confirmed pairs. Members without an edge stay alone."""
+    parent = {m: m for m in members}
+
+    def find(x):
+        while parent[x] != x:
+            parent[x] = parent[parent[x]]
+            x = parent[x]
+        return x
+
+    for a, b in edges:
+        if a in parent and b in parent:
+            parent[find(a)] = find(b)
+    comp: dict[str, list[str]] = {}
+    for m in members:
+        comp.setdefault(find(m), []).append(m)
+    return list(comp.values())
+
+
+async def _verify_pairs(ctx, work_dir, topic, cid, dicts, pairs):
+    """Judge the candidate pairs in DEDUP_PAIRS_CHUNK packages, all packages IN PARALLEL → confirmed edges."""
+    by = {d["title_norm"]: d for d in dicts}
+    chunks = [pairs[k:k + blocks.DEDUP_PAIRS_CHUNK] for k in range(0, len(pairs), blocks.DEDUP_PAIRS_CHUNK)]
+
+    async def _chunk(ci, chunk):
+        path = work_dir / f"verify-{cid}-{ci}.json"
+        lines = "\n\n".join(
+            f"{j + 1}.\nA: {by[a]['title']} — {by[a]['content']}\nB: {by[b]['title']} — {by[b]['content']}"
+            for j, (a, b) in enumerate(chunk))
+        await run_single_slot(
+            ctx, f"Chain verify {cid}", key=f"blocks-{topic}-verify-{cid}-{ci}",
+            prompt=_prompt("Blocks-Paar-Filter", topic=topic, pairs=lines, out_path=path),
+            role="judge", capabilities="files",
+            payload=lambda result, p=path: blocks._pairs_schema(_json_file(p)),
+            timeout=_timeout("selection_mapping", len(chunk)))
+        verdict = blocks._pairs_schema(_json_file(path)) or {}
+        return [(a, b) for j, (a, b) in enumerate(chunk) if verdict.get(j + 1)]
+
+    results = await asyncio.gather(*[_chunk(ci, ch) for ci, ch in enumerate(chunks)], return_exceptions=True)
+    return [e for r in results if isinstance(r, list) for e in r]
+
+
+async def _proc_naming(ctx: GenContext, flow: _Flow, cards):
+    """Pick the best member title per chain — batch runs IN PARALLEL (one agent per chain)."""
+    await asyncio.gather(*[_name_one(ctx, flow, c) for c in cards], return_exceptions=True)
+    flow.wake.set()
+
+
+async def _name_one(ctx: GenContext, flow: _Flow, c):
+    topic = flow.topic
+    cid = c["chain_id"]
+    members = await db.kanban_chain_members(topic, cid)
+    dicts = await _members_dicts(topic, members)
+    if len(dicts) <= 1:
+        await db.kanban_upsert_chain(topic, cid, "naming_verify",
+                                     main_title_norm=(members[0] if members else None), dirty=0)
+        return
+    winner = await _choose_title(ctx, flow.work_dir, topic, cid, members, dicts, "Blocks-Naming")
+    await db.kanban_upsert_chain(topic, cid, "naming_verify", main_title_norm=winner, dirty=0)
+
+
+async def _proc_naming_verify(ctx: GenContext, flow: _Flow, cards):
+    """Second judge checks each title — batch runs IN PARALLEL."""
+    await asyncio.gather(*[_namecheck_one(ctx, flow, c) for c in cards], return_exceptions=True)
+    flow.wake.set()
+
+
+async def _namecheck_one(ctx: GenContext, flow: _Flow, c):
+    topic = flow.topic
+    cid = c["chain_id"]
+    members = await db.kanban_chain_members(topic, cid)
+    dicts = await _members_dicts(topic, members)
+    winner = c.get("main_title_norm") or (members[0] if members else None)
+    if len(dicts) > 1:
+        winner = await _choose_title(ctx, flow.work_dir, topic, cid, members, dicts, "Blocks-Naming-Check",
+                                     current=(members.index(winner) + 1 if winner in members else 1))
+    await db.kanban_upsert_chain(topic, cid, "chain_filter", main_title_norm=winner, dirty=0)
+
+
+async def _choose_title(ctx, work_dir, topic, cid, members, dicts, template, current=None):
+    by = {d["title_norm"]: d for d in dicts}
+    path = work_dir / f"naming-{cid}.json"
+    lines = "\n".join(f"{k + 1}. {by[m]['title']} — {by[m]['content']}" for k, m in enumerate(members) if m in by)
+    kw = dict(topic=topic, members=lines, out_path=path)
+    if current is not None:
+        kw["current"] = current
+    await run_single_slot(
+        ctx, f"Naming {cid}", key=f"blocks-{topic}-naming-{cid}",
+        prompt=_prompt(template, **kw), role="judge", capabilities="files",
+        payload=lambda result, p=path: blocks._naming_schema(_json_file(p), len(members)),
+        timeout=_timeout("selection_mapping", len(members)))
+    best = blocks._naming_schema(_json_file(path), len(members))
+    if best is None:
+        rep = blocks._canonical(dicts, list(range(len(dicts))), set())
+        w = _norm_title(rep["title"])
+        return w if w in members else members[0]
+    return members[best - 1]
+
+
+async def _proc_chain_filter(flow: _Flow, cards):
+    """BARRIER. Reduce each chain to its winner → upsert a block (chain_id stable). → filter_verify."""
+    topic = flow.topic
+    by = await db.kanban_titles_by_norm(topic)
+    for c in cards:
+        cid = c["chain_id"]
+        members = await db.kanban_chain_members(topic, cid)
+        winner = c.get("main_title_norm") if c.get("main_title_norm") in members else (members[0] if members else None)
+        if not winner or winner not in by:
+            await db.kanban_upsert_chain(topic, cid, DONE_CHAIN, dirty=0)
+            continue
+        w = by[winner]
+        await db.kanban_upsert_block(topic, f"b-{cid}", cid, w["title"], w["source"], w["content"], stage="filter_verify_b")
+        await db.kanban_upsert_chain(topic, cid, "filter_verify", dirty=0)
+    flow.wake.set()
+
+
+async def _proc_filter_verify(ctx: GenContext, flow: _Flow, cards):
+    """An agent confirms each reduced block is a valid, on-topic, self-contained concept. Off-topic /
+    noise / empty blocks are dropped (→ REJECTED, chain done). IN PARALLEL (one agent per block)."""
+    await asyncio.gather(*[_filtercheck_one(ctx, flow, c) for c in cards], return_exceptions=True)
+    flow.wake.set()
+
+
+async def _filtercheck_one(ctx: GenContext, flow: _Flow, c):
+    topic = flow.topic
+    cid = c["chain_id"]
+    bid = f"b-{cid}"
+    by = await db.kanban_titles_by_norm(topic)
+    members = await db.kanban_chain_members(topic, cid)
+    winner = c.get("main_title_norm") if c.get("main_title_norm") in by else (members[0] if members else None)
+
+    async def _drop():
+        await db.kanban_advance(topic, "kanban_blocks", bid, REJECTED)
+        await db.kanban_upsert_chain(topic, cid, DONE_CHAIN, dirty=0)
+
+    async def _pass():
+        await db.kanban_advance(topic, "kanban_blocks", bid, "block_assemble_b")
+        await db.kanban_upsert_chain(topic, cid, "block_assemble", dirty=0)
+
+    if not winner or winner not in by:  # nothing to verify → drop the empty chain
+        await _drop()
+        return
+    w = by[winner]
+    path = flow.work_dir / f"filtercheck-{cid}.json"
+    await run_single_slot(
+        ctx, f"Filter verify {cid}", key=f"blocks-{topic}-verify-filter-{cid}",
+        prompt=_prompt("Blocks-Filter-Check", topic=topic, title=w["title"], content=w["content"], out_path=path),
+        role="judge", capabilities="files",
+        payload=lambda result, p=path: _keep_schema(_json_file(p)),
+        timeout=_timeout("selection_mapping", 1))
+    keep = _keep_schema(_json_file(path))
+    await (_drop() if keep is False else _pass())  # None (parse fail) → keep, conservative
+
+
+async def _proc_block(flow: _Flow, cards):
+    """BARRIER. Assemble the final block row → small_blocks. (chain card consumed → done.)"""
+    topic = flow.topic
+    for c in cards:
+        cid = c["chain_id"]
+        await db.kanban_advance(topic, "kanban_blocks", f"b-{cid}", "small_blocks")
+        await db.kanban_upsert_chain(topic, cid, DONE_CHAIN, dirty=0)
+    flow.wake.set()
+
+
+def _small_schema(data, count):
+    """{"small": {"1": true, ...}} → {block_index: bool} · else None."""
+    if not isinstance(data, dict) or not isinstance(data.get("small"), dict):
+        return None
+    out = {}
+    for k, v in data["small"].items():
+        try:
+            n = int(k)
+        except (ValueError, TypeError):
+            continue
+        if 1 <= n <= count:
+            out[n] = str(v).strip().casefold() in ("true", "ja", "yes", "1")
+    return out or None
+
+
+def _keep_schema(data):
+    """{"keep": true/false} → bool · None when absent/unparseable (caller keeps on None, conservative)."""
+    if not isinstance(data, dict) or "keep" not in data:
+        return None
+    return str(data["keep"]).strip().casefold() in ("true", "ja", "yes", "1")
+
+
+def _dep_schema(data, count):
+    """{"parent": N} → 0..count (0 = standalone) · else None."""
+    if not isinstance(data, dict):
+        return None
+    try:
+        n = int(data.get("parent"))
+    except (ValueError, TypeError):
+        return None
+    return n if 0 <= n <= count else None
+
+
+async def _proc_small(ctx: GenContext, flow: _Flow, cards):
+    """Judge marks fragment-like blocks (batch). → small_verify."""
+    topic = flow.topic
+    path = flow.work_dir / f"small-{cards[0]['block_id']}.json"
+    lines = "\n".join(f"{i + 1}. {c['title']} — {c['content']}" for i, c in enumerate(cards))
+    await run_single_slot(
+        ctx, "Small blocks", key=f"blocks-{topic}-small-{cards[0]['block_id']}",
+        prompt=_prompt("Blocks-Small", topic=topic, blocks=lines, out_path=path),
+        role="judge", capabilities="files",
+        payload=lambda result, p=path: _small_schema(_json_file(p), len(cards)),
+        timeout=_timeout("selection_mapping", len(cards)))
+    verdict = _small_schema(_json_file(path), len(cards)) or {}
+    for i, c in enumerate(cards):
+        is_small = 1 if verdict.get(i + 1) else 0
+        await db.kanban_upsert_block(topic, c["block_id"], c["chain_id"], c["title"], c["source"], c["content"],
+                                     stage="small_verify", is_small=is_small, parent_block_id=c.get("parent_block_id"))
+    flow.wake.set()
+
+
+async def _proc_small_verify(ctx: GenContext, flow: _Flow, cards):
+    """Second judge re-checks the small flag (consensus): a block stays `small` only if it was marked
+    small AND this judge also calls it a fragment. Disagreement → keep as a main block (conservative).
+    → dependency."""
+    topic = flow.topic
+    path = flow.work_dir / f"smallcheck-{cards[0]['block_id']}.json"
+    lines = "\n".join(f"{i + 1}. {c['title']} — {c['content']}" for i, c in enumerate(cards))
+    await run_single_slot(
+        ctx, "Small verify", key=f"blocks-{topic}-verify-small-{cards[0]['block_id']}",
+        prompt=_prompt("Blocks-Small", topic=topic, blocks=lines, out_path=path),
+        role="judge", capabilities="files",
+        payload=lambda result, p=path: _small_schema(_json_file(p), len(cards)),
+        timeout=_timeout("selection_mapping", len(cards)))
+    verdict = _small_schema(_json_file(path), len(cards)) or {}
+    for i, c in enumerate(cards):
+        is_small = 1 if (c["is_small"] and verdict.get(i + 1)) else 0
+        await db.kanban_upsert_block(topic, c["block_id"], c["chain_id"], c["title"], c["source"], c["content"],
+                                     stage="dependency", is_small=is_small, parent_block_id=c.get("parent_block_id"))
+    flow.wake.set()
+
+
+async def _proc_dependency(ctx: GenContext, flow: _Flow, cards):
+    """For each SMALL block, a judge picks its parent from the full list — batch runs IN PARALLEL."""
+    topic = flow.topic
+    parents = [b for b in await db.kanban_all_blocks(topic) if not b["is_small"] and b["stage"] != REJECTED]
+    plist = "\n".join(f"{i + 1}. {b['title']}" for i, b in enumerate(parents))
+    await asyncio.gather(*[_dep_one(ctx, flow, c, parents, plist) for c in cards], return_exceptions=True)
+    flow.wake.set()
+
+
+async def _dep_one(ctx: GenContext, flow: _Flow, c, parents, plist):
+    topic = flow.topic
+    if not c["is_small"] or not parents:
+        await db.kanban_advance(topic, "kanban_blocks", c["block_id"], "dependency_verify")
+        return
+    path = flow.work_dir / f"dep-{c['block_id']}.json"
+    await run_single_slot(
+        ctx, "Dependency", key=f"blocks-{topic}-dep-{c['block_id']}",
+        prompt=_prompt("Blocks-Dependency", topic=topic,
+                       small=f"{c['title']} — {c['content']}", parents=plist, out_path=path),
+        role="judge", capabilities="files",
+        payload=lambda result, p=path: _dep_schema(_json_file(p), len(parents)),
+        timeout=_timeout("selection_mapping", len(parents)))
+    pick = _dep_schema(_json_file(path), len(parents))
+    parent_id = parents[pick - 1]["block_id"] if pick else None
+    await db.kanban_upsert_block(topic, c["block_id"], c["chain_id"], c["title"], c["source"], c["content"],
+                                 stage="dependency_verify", is_small=c["is_small"], parent_block_id=parent_id)
+
+
+async def _proc_dependency_verify(flow: _Flow, cards):
+    """A small block without a parent is demarked → becomes a main block. → main."""
+    topic = flow.topic
+    for c in cards:
+        is_small = c["is_small"]
+        if is_small and not c.get("parent_block_id"):
+            is_small = 0
+        await db.kanban_upsert_block(topic, c["block_id"], c["chain_id"], c["title"], c["source"], c["content"],
+                                     stage="main", is_small=is_small, parent_block_id=c.get("parent_block_id"))
+    flow.wake.set()
+
+
+async def _proc_main(flow: _Flow, cards):
+    """BARRIER. Finalize non-small blocks → mirror into the legacy `blocks` table as consensus."""
+    topic = flow.topic
+    for c in cards:
+        if not c["is_small"]:
+            norm = _norm_title(c["title"])
+            await db.upsert_block(topic, norm, c["title"], c["content"], [c["source"]] if c["source"] else [])
+            await db.set_block_status(topic, norm, "consensus")
+        await db.kanban_advance(topic, "kanban_blocks", c["block_id"], DONE_BLOCK)
+    flow.wake.set()
+
+
+# ── Orchestration ──────────────────────────────────────────────────────────────────
+async def run_kanban(ctx: GenContext, set_p, files: dict, q: dict, folder, instructions: str,
+                     research: bool = True) -> bool:
+    """Run the streaming inventory. Returns True when the whole flow reaches quiescence at 'main'.
+
+    research=False ("Continue"): process the EXISTING queue without searching new titles. No initial
+    research producer, producers=0 → research_done is true at once; workers drain the queue and exit.
+    The +Research button can still attach an agent later via flow.spawn_research."""
+    topic = ctx.topic
+    flow = _Flow(topic, files["arbeit"])
+    flow.spawn_research = lambda: _extra_research(ctx, files, q, folder, instructions, flow)
+    if not research:
+        flow.producers = 0  # continue the existing queue, search no new titles
+    _active_flows[topic] = flow
+    set_p("Kanban inventory…")
+
+    ORDER = ["merge", "chain", "chain_verify", "naming", "naming_verify", "chain_filter",
+             "filter_verify", "block_assemble", "small_blocks", "small_verify",
+             "dependency", "dependency_verify", "main"]
+    up = {s: ORDER[:i] for i, s in enumerate(ORDER)}   # upstream = all stages before this one
+    barriers = {"chain_filter", "block_assemble", "main"}
+    specs = [
+        ("kanban_titles", "merge", lambda cs: _proc_merge(flow, cs)),
+        ("kanban_titles", "chain", lambda cs: _proc_chain(flow, cs)),
+        ("kanban_chains", "chain_verify", lambda cs: _proc_chain_verify(ctx, flow, cs)),
+        ("kanban_chains", "naming", lambda cs: _proc_naming(ctx, flow, cs)),
+        ("kanban_chains", "naming_verify", lambda cs: _proc_naming_verify(ctx, flow, cs)),
+        ("kanban_chains", "chain_filter", lambda cs: _proc_chain_filter(flow, cs)),
+        ("kanban_chains", "filter_verify", lambda cs: _proc_filter_verify(ctx, flow, cs)),
+        ("kanban_chains", "block_assemble", lambda cs: _proc_block(flow, cs)),
+        ("kanban_blocks", "small_blocks", lambda cs: _proc_small(ctx, flow, cs)),
+        ("kanban_blocks", "small_verify", lambda cs: _proc_small_verify(ctx, flow, cs)),
+        ("kanban_blocks", "dependency", lambda cs: _proc_dependency(ctx, flow, cs)),
+        ("kanban_blocks", "dependency_verify", lambda cs: _proc_dependency_verify(flow, cs)),
+        ("kanban_blocks", "main", lambda cs: _proc_main(flow, cs)),
+    ]
+    workers = [_research(ctx, files, q, folder, instructions, flow)] if research else []
+    for table, stage, proc in specs:
+        workers.append(_worker(flow, table, stage, proc, up[stage], barrier=(stage in barriers),
+                               inflight=(1 if stage in _SERIAL_STAGES else WORKER_INFLIGHT)))
+
+    progress = asyncio.create_task(_progress(flow, set_p))
+    try:
+        await asyncio.gather(*workers, return_exceptions=True)
+    finally:
+        flow.stop = True
+        progress.cancel()
+        _active_flows.pop(topic, None)
+    if ctx.is_cancelled():
+        return False
+    n = await db.kanban_count(topic, "kanban_blocks", DONE_BLOCK)
+    _log(topic, f"Kanban: done — {n} blocks finalized")
+    return True
+
+
+async def _progress(flow: _Flow, set_p):
+    while not flow.stop:
+        try:
+            counts = await db.kanban_stage_counts(flow.topic)
+            total = sum(counts.values())
+            set_p(f"Kanban: {total} cards in flow")
+        except Exception:
+            pass
+        await asyncio.sleep(1.0)

backend/models.py

@@ -33,6 +33,7 @@ class BlocksCreateRequest(BaseModel):
     ab_phase: int | None = Field(default=None, ge=1, le=9)  # re-run from a coarse phase (position in _phasen(topic), 1-based; up to 9: …outline/questions/artifacts); None = resume/continue without deleting
     ab_step: int | None = Field(default=None, ge=0)  # re-run from a fine sub-step (0-based index into _blocks_steps); takes precedence over ab_phase
     to_step: int | None = Field(default=None, ge=0)  # stop AFTER this fine sub-step (0-based index into _blocks_steps); None = run to the end
+    research: bool = True  # False = "Continue": process the existing queue, search no new titles
 
 
 class BlocksResetStepRequest(BaseModel):

backend/pipeline.py

@@ -167,7 +167,7 @@ _yesno_schema = _enum_map_schema("relevant", _YESNO)            # triage gate
 _MAX_RESTARTS = 2
 
 
-async def _race(topic: str, label: str, slots: list[dict], quorum: int, timeout: int, provider: str, on_update=None, cancelled=None, *, grace: int | None = None) -> list | None:
+async def _race(topic: str, label: str, slots: list[dict], quorum: int, timeout: int, provider: str, on_update=None, cancelled=None, *, grace: int | None = None, min_runtime: int | None = None, max_runtime: int | None = None) -> list | None:
     """Starts all slots in parallel and collects `quorum` valid results.
 
     Slot spec: {key, prompt, role, capabilities, payload}. `payload(result)`
@@ -180,10 +180,18 @@ async def _race(topic: str, label: str, slots: list[dict], quorum: int, timeout:
     a timer of `grace` seconds. After it expires, running agents are only
     killed if the minimum stands — otherwise the race, including restarts,
     keeps running until it stands. Returns: `quorum` to `len(slots)` results.
+
+    `min_runtime` (wall-clock from start): the race does not return before it
+    elapses while agents are still running — gives them time to search thoroughly.
+    `max_runtime` (wall-clock from start): hard cap — returns whatever is collected
+    (or None if nothing), killing the rest. Both default off; only Research sets them.
     """
     attempts = {i: 0 for i in range(len(slots))}
     tasks: dict[asyncio.Task, int] = {}
     loop = asyncio.get_running_loop()
+    start = loop.time()
+    min_deadline = start + min_runtime if min_runtime else None
+    max_deadline = start + max_runtime if max_runtime else None
     deadline: float | None = None
 
     def spawn(i: int) -> None:
@@ -191,7 +199,7 @@ async def _race(topic: str, label: str, slots: list[dict], quorum: int, timeout:
         task = asyncio.create_task(run_agent(
             slot["key"], slot["prompt"], timeout,
             provider=provider, role=slot["role"], capabilities=slot["capabilities"],
-            scope=topic,
+            scope=topic, on_line=slot.get("on_line"),
         ))
         tasks[task] = i
 
@@ -203,12 +211,22 @@ async def _race(topic: str, label: str, slots: list[dict], quorum: int, timeout:
         while tasks:
             if cancelled and cancelled():
                 return None
-            if deadline is not None and len(results) >= quorum and loop.time() >= deadline:
+            # Hard wall-clock cap: return whatever we have (None if empty), kill the rest.
+            if max_deadline is not None and loop.time() >= max_deadline:
+                _log(topic, f"{label}: max runtime {max_runtime}s reached ({len(results)} valid)")
+                return results or None
+            min_ok = min_deadline is None or loop.time() >= min_deadline
+            if deadline is not None and len(results) >= quorum and loop.time() >= deadline and min_ok:
                 return results
-            # Grace set and minimum reached → only wait for the remaining deadline
-            wait_timeout = None
+            # Wake up for the earliest relevant deadline (grace, min, or max).
+            waits = []
             if deadline is not None and len(results) >= quorum:
-                wait_timeout = max(0.0, deadline - loop.time())
+                waits.append(deadline - loop.time())
+                if min_deadline is not None:
+                    waits.append(min_deadline - loop.time())
+            if max_deadline is not None:
+                waits.append(max_deadline - loop.time())
+            wait_timeout = max(0.0, min(waits)) if waits else None
             done, _ = await asyncio.wait(tasks.keys(), return_when=asyncio.FIRST_COMPLETED, timeout=wait_timeout)
             if not done:
                 continue
@@ -235,7 +253,8 @@ async def _race(topic: str, label: str, slots: list[dict], quorum: int, timeout:
                         _log(topic, f"{label}: first result — grace {grace}s running")
                     if on_update:
                         on_update(len(results))
-                    if len(results) >= quorum and (grace is None or loop.time() >= deadline):
+                    if (len(results) >= quorum and (grace is None or loop.time() >= deadline)
+                            and (min_deadline is None or loop.time() >= min_deadline)):
                         return results
                     continue
 
@@ -273,13 +292,13 @@ OK, CANCELLED, FAILED = "ok", "cancelled", "failed"
 
 async def run_single_slot(
     ctx: GenContext, label: str, *,
-    key: str, prompt: str, role: str, capabilities: str, payload, timeout: int,
+    key: str, prompt: str, role: str, capabilities: str, payload, timeout: int, on_line=None,
 ) -> tuple[str, object]:
     """One agent, one valid result (race with quorum 1).
 
     → (OK, value) | (CANCELLED, None) | (FAILED, None)
     """
-    slots = [{"key": key, "prompt": prompt, "role": role, "capabilities": capabilities, "payload": payload}]
+    slots = [{"key": key, "prompt": prompt, "role": role, "capabilities": capabilities, "payload": payload, "on_line": on_line}]
     res = await _race(ctx.topic, label, slots, 1, timeout, ctx.provider, cancelled=ctx.is_cancelled)
     if ctx.is_cancelled():
         return CANCELLED, None

backend/routes.py

@@ -164,7 +164,7 @@ async def create_blocks(req: BlocksCreateRequest):
                 raise HTTPException(400, "Link must start with http:// or https://.")
         qp.parent.mkdir(parents=True, exist_ok=True)
         atomic_write_json(qp, {"type": type, "location": location, "spec": req.instructions.strip()})
-    asyncio.create_task(generate_blocks(topic, req.instructions.strip(), req.provider, ab_phase=req.ab_phase, ab_step=req.ab_step, to_step=req.to_step))
+    asyncio.create_task(generate_blocks(topic, req.instructions.strip(), req.provider, ab_phase=req.ab_phase, ab_step=req.ab_step, to_step=req.to_step, research=req.research))
     return {"ok": True}
 
 
@@ -231,6 +231,28 @@ async def get_blocks_uebersicht(topic: str):
     return await load_overview(topic)
 
 
+@router.get("/blocks/kanban")
+async def get_kanban_board(topic: str):
+    """Live card counts per kanban column (empty dict when the streaming inventory is not in use)."""
+    import database as db
+    return await db.kanban_stage_counts(topic)
+
+
+@router.get("/blocks/agents")
+async def get_active_agents(topic: str):
+    """Currently running agents for this topic + their runtime (seconds). Label = key minus prefix."""
+    from agents import active_agents
+    prefix = f"blocks-{topic}-"
+    return [{"label": a["key"][len(prefix):], "runtime": a["runtime"]} for a in active_agents(prefix)]
+
+
+@router.post("/blocks/research")
+async def add_research(topic: str):
+    """Attach one more research agent to the running kanban flow (live breadth boost)."""
+    from kanban import add_research_agent
+    return {"started": add_research_agent(topic)}
+
+
 @router.get("/blocks/question-pattern")
 async def get_question_pattern(topic: str, block: str):
     """Unlocked question patterns of a block (up to the current level; empty = live)."""

frontend/src/App.vue

@@ -224,12 +224,12 @@ async function handleResetFromStep(step) {
   await loadBlocks()
 }
 
-async function handleBlocksClick({ instructions, abPhase = null, abStep = null, toStep = null }) {
+async function handleBlocksClick({ instructions, abPhase = null, abStep = null, toStep = null, research = true }) {
   if (!selectedTopic.value) return
   uiError.value = null
   try {
     // Source is already fixed here; abPhase/abStep set the start, toStep an optional end limit.
-    await apiCreateBausteine(selectedTopic.value, instructions, provider.value, undefined, undefined, abPhase, abStep, toStep)
+    await apiCreateBausteine(selectedTopic.value, instructions, provider.value, undefined, undefined, abPhase, abStep, toStep, research)
   } catch (e) {
     uiError.value = e.message
     return
@@ -424,7 +424,7 @@ onMounted(async () => {
       @close="mainView = 'detail'"
       @restartFrom="(r) => handleBlocksClick({ instructions: '', abStep: r.from, toStep: r.to })"
       @resetFrom="handleResetFromStep"
-      @restartAll="() => handleBlocksClick({ abPhase: blocks.ready ? 1 : null })"
+      @restartAll="(o) => handleBlocksClick({ research: o?.research ?? false })"
       @removeAll="handleResetBlocks"
       @cancel="handleCancelBlocks"
     />

frontend/src/api.js

@@ -47,11 +47,11 @@ export async function fetchBlocksStatus(topic) {
   return res.json()
 }
 
-export async function createBlocks(topic, instructions = '', provider = 'claude', sourceType = 'thema', sourceOrt = '', abPhase = null, abStep = null, toStep = null) {
+export async function createBlocks(topic, instructions = '', provider = 'claude', sourceType = 'thema', sourceOrt = '', abPhase = null, abStep = null, toStep = null, research = true) {
   const res = await fetch(`${BASE}/blocks`, {
     method: 'POST',
     headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify({ topic, instructions, provider, source_type: sourceType, source_location: sourceOrt, ab_phase: abPhase, ab_step: abStep, to_step: toStep }),
+    body: JSON.stringify({ topic, instructions, provider, source_type: sourceType, source_location: sourceOrt, ab_phase: abPhase, ab_step: abStep, to_step: toStep, research }),
   })
   return jsonOrThrow(res)
 }
@@ -147,6 +147,24 @@ export async function fetchBlocksOverview(topic) {
   return jsonOrThrow(res)
 }
 
+// Live card counts per kanban column ({} when the streaming inventory is not in use).
+export async function fetchKanban(topic) {
+  const res = await fetch(`${BASE}/blocks/kanban?topic=${encodeURIComponent(topic)}`)
+  return jsonOrThrow(res)
+}
+
+// Currently running agents for a topic + their runtime in seconds.
+export async function fetchAgents(topic) {
+  const res = await fetch(`${BASE}/blocks/agents?topic=${encodeURIComponent(topic)}`)
+  return jsonOrThrow(res)
+}
+
+// Attach one more research agent to the running kanban flow.
+export async function addResearch(topic) {
+  const res = await fetch(`${BASE}/blocks/research?topic=${encodeURIComponent(topic)}`, { method: 'POST' })
+  return jsonOrThrow(res)
+}
+
 export async function cancelGuide(id) {
   await fetch(`${BASE}/guides/${id}/cancel`, { method: 'POST' })
 }

frontend/src/components/BlocksOverview.vue

@@ -1,6 +1,6 @@
 <script setup>
-import { ref, computed, watch } from 'vue'
-import { fetchBlocksOverview } from '../api.js'
+import { ref, computed, watch, onUnmounted } from 'vue'
+import { fetchBlocksOverview, fetchKanban, fetchAgents, addResearch } from '../api.js'
 
 const props = defineProps({
   topic: { type: String, required: true },
@@ -12,6 +12,39 @@ const props = defineProps({
 })
 const emit = defineEmits(['close', 'restartFrom', 'resetFrom', 'restartAll', 'removeAll', 'cancel'])
 
+// Live kanban board (streaming inventory). Ordered columns + their card counts.
+const KANBAN_COLS = [
+  ['merge', 'Merge'], ['chain', 'Chain'], ['chain_verify', 'Verify'], ['naming', 'Naming'],
+  ['naming_verify', 'Name✓'], ['chain_filter', 'Filter'], ['filter_verify', 'Filter✓'],
+  ['block_assemble', 'Block'], ['small_blocks', 'Small'], ['small_verify', 'Small✓'],
+  ['dependency', 'Dep'], ['dependency_verify', 'Dep✓'], ['main', 'Main'], ['done_block', 'Done'],
+]
+const kanban = ref({})
+const agents = ref([])
+const kanbanCols = computed(() => KANBAN_COLS.map(([k, label]) => ({ key: k, label, n: kanban.value[k] || 0 })))
+const kanbanActive = computed(() => Object.values(kanban.value).some((n) => n > 0))
+function fmtRuntime(s) {
+  const m = Math.floor(s / 60), sec = Math.floor(s % 60)
+  return `${m}:${String(sec).padStart(2, '0')}`
+}
+const researchBusy = ref(false)
+async function moreResearch() {
+  researchBusy.value = true
+  try { await addResearch(props.topic) } catch { /* ignore */ }
+  setTimeout(() => { researchBusy.value = false }, 800)  // brief debounce against double-clicks
+}
+let kanbanTimer = null
+async function pollKanban() {
+  try { kanban.value = await fetchKanban(props.topic) } catch { /* ignore */ }
+  try { agents.value = await fetchAgents(props.topic) } catch { /* ignore */ }
+}
+watch(() => [props.topic, props.generating], () => {
+  clearInterval(kanbanTimer)
+  pollKanban()
+  if (props.generating) kanbanTimer = setInterval(pollKanban, 1000)
+}, { immediate: true })
+onUnmounted(() => clearInterval(kanbanTimer))
+
 // Group sub-steps by phase, carrying the global index for the re-run.
 const phaseGroups = computed(() => {
   const out = []
@@ -113,7 +146,8 @@ const subTotal = computed(() => items.value.reduce((n, b) => n + (b.subblocks?.l
       <div class="bk-steps-top">
         <div v-if="progress" class="bk-progress"><span class="bk-progress-dot"></span>{{ progress }}</div>
         <div v-if="!generating" class="bk-global-actions">
-          <button class="bk-act play" @click="emit('restartAll')">{{ partial ? 'Continue' : ready ? 'Regenerate' : 'Generate' }}</button>
+          <button class="bk-act play" @click="emit('restartAll', { research: false })" title="Process the existing queue — search no new topics">Continue</button>
+          <button class="bk-act play" @click="emit('restartAll', { research: true })" title="Start one research agent and process the queue">+ Research</button>
           <button
             v-if="ready || partial"
             class="bk-act danger"
@@ -122,9 +156,22 @@ const subTotal = computed(() => items.value.reduce((n, b) => n + (b.subblocks?.l
           >{{ confirm === 'remove' ? 'Sure?' : 'Remove' }}</button>
         </div>
         <div v-else class="bk-global-actions">
+          <button class="bk-act play" :disabled="researchBusy" @click="moreResearch" title="Start one more research agent">+ Research</button>
           <button class="bk-act danger" @click="emit('cancel')">Cancel</button>
         </div>
       </div>
+      <div v-if="generating || kanbanActive" class="bk-kanban">
+        <div v-for="c in kanbanCols" :key="c.key" class="bk-kcol" :class="{ 'bk-kactive': c.n > 0 }">
+          <span class="bk-kcount">{{ c.n }}</span>
+          <span class="bk-klabel">{{ c.label }}</span>
+        </div>
+      </div>
+      <div v-if="agents.length" class="bk-agents">
+        <span class="bk-agents-label">{{ agents.length }} Agenten aktiv:</span>
+        <span v-for="a in agents" :key="a.label" class="bk-agent">
+          {{ a.label }} <span class="bk-agent-time">{{ fmtRuntime(a.runtime) }}</span>
+        </span>
+      </div>
       <div class="bk-phasen">
         <div v-for="g in phaseGroups" :key="g.phase" class="bk-phase">
           <span class="bk-phase-label">{{ g.phase }}</span>
@@ -274,6 +321,28 @@ const subTotal = computed(() => items.value.reduce((n, b) => n + (b.subblocks?.l
 /* Header: progress left, global buttons right */
 .bk-steps-top { display: flex; align-items: center; gap: 1rem; min-height: 1.9rem; margin-bottom: 0.7rem; }
 .bk-steps-top .bk-progress { margin-bottom: 0; }
+
+/* Live kanban board (streaming inventory) */
+.bk-kanban { display: flex; flex-wrap: wrap; gap: 0.3rem; margin-bottom: 0.7rem; }
+.bk-kcol {
+  display: flex; flex-direction: column; align-items: center; gap: 1px;
+  min-width: 3.1rem; padding: 0.3rem 0.4rem;
+  border: 1px solid var(--border-strong); border-radius: 6px; background: var(--panel);
+}
+.bk-kcol.bk-kactive { border-color: var(--accent); background: var(--accent-soft); }
+.bk-kcount { font-size: 0.95rem; font-weight: 700; color: var(--text); }
+.bk-kactive .bk-kcount { color: var(--accent); }
+.bk-klabel { font-size: 0.6rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--text-faint); }
+
+/* Running agents + live runtime */
+.bk-agents { display: flex; flex-wrap: wrap; align-items: center; gap: 0.3rem 0.5rem; margin-bottom: 0.7rem; font-size: 0.78rem; }
+.bk-agents-label { color: var(--text-muted); font-weight: 600; }
+.bk-agent {
+  display: inline-flex; align-items: center; gap: 0.35rem;
+  padding: 0.12rem 0.5rem; border: 1px solid var(--accent); border-radius: 10px;
+  background: var(--accent-soft); color: var(--text);
+}
+.bk-agent-time { font-variant-numeric: tabular-nums; font-weight: 700; color: var(--accent); }
 .bk-global-actions { margin-left: auto; display: flex; gap: 0.4rem; }
 
 /* Action bar for the selected start point */

templates/Prompt/Blocks-Dependency.md

@@ -0,0 +1,17 @@
+A small block for the topic "{topic}" may be a sub-topic of a bigger block. Pick the ONE block it belongs under — or 0 if it stands on its own after all.
+
+SMALL BLOCK:
+{small}
+
+CANDIDATE PARENT BLOCKS:
+{parents}
+
+Rules:
+- Pick the number of the block the small block is a detail/sub-step/property of.
+- 0 = it is NOT a sub-topic of any of them (it is actually standalone).
+- Only pick a parent if the small block clearly belongs INSIDE it.
+
+Write ONLY the JSON file to: {out_path}
+
+Format (the chosen parent number, or 0):
+{{"parent": 0}}

templates/Prompt/Blocks-Filter-Check.md

@@ -0,0 +1,23 @@
+You are filtering the block inventory of a learning guide for the topic "{topic}". Judge the ONE block below.
+
+BLOCK:
+{title} — {content}
+
+## Question
+Is this a **valid, self-contained learning block** that genuinely belongs to "{topic}"?
+
+- **keep = true** → a real, teachable concept of this topic: a method, definition, syntax element, problem, rule, or feature. The default.
+- **keep = false** → drop it, ONLY if it clearly is one of:
+  - **Off-topic**: not actually about "{topic}" (a stray crawl artifact, a different subject).
+  - **Noise / meta**: navigation, "Table of Contents", "Dos and Don'ts", a tool/website name, a page section — not a concept you would learn.
+  - **Empty / degenerate**: title says nothing teachable, or the content is a non-statement.
+
+## Rules
+- When in doubt → **keep** (true). Only drop a CLEAR off-topic / noise / empty case.
+- Judge by the CONTENT (after the "—"), not only the title.
+- Do NOT drop something just because it is narrow or overlaps another block — that is handled elsewhere. Drop only off-topic / noise / empty.
+
+Write ONLY the JSON file to: {out_path}
+
+Format:
+{{"keep": true}}

templates/Prompt/Blocks-Naming-Check.md

@@ -0,0 +1,15 @@
+The numbered entries below all describe the SAME block for the topic "{topic}". Entry number {current} was chosen as the canonical title. Check whether that is the best choice — if another entry is a clearly better canonical name, pick it instead.
+
+MEMBERS:
+{members}
+
+Rules:
+- Pick an EXISTING entry number — do NOT invent a title.
+- Best = most concrete, precise, self-explanatory, established term for the shared concept.
+- If the current choice ({current}) is already the best, return it unchanged.
+- When in doubt, keep the current choice.
+
+Write ONLY the JSON file to: {out_path}
+
+Format (the best member number, nothing else):
+{{"best": {current}}}

templates/Prompt/Blocks-Naming.md

@@ -0,0 +1,15 @@
+The numbered entries below all describe the SAME block (concept) for the topic "{topic}", just worded differently. Pick the ONE entry whose title is the best canonical name for this block.
+
+MEMBERS:
+{members}
+
+Rules:
+- Pick an EXISTING entry — do NOT invent a new title or umbrella term.
+- Prefer the most CONCRETE, precise, self-explanatory title for the shared concept.
+- Prefer the established/standard term (correct spelling, full form over cryptic abbreviation) — but stay concrete, never over-general.
+- Avoid reference/placeholder titles ("Satz 7.18", "Punkt 3", "(**)") if a meaningful one exists.
+
+Write ONLY the JSON file to: {out_path}
+
+Format (the chosen member number, nothing else):
+{{"best": 1}}

templates/Prompt/Blocks-Research.md

@@ -17,7 +17,8 @@ Rules:
 - Write title and description in GERMAN (technical terms/code identifiers stay original).
 - Description at most ~12 words.
 
-Write ONLY the Markdown file to: {blocks_path}
+Write the Markdown file to: {blocks_path}
+**Stream INCREMENTALLY — your output is read LIVE while you work.** The MOMENT you find a block: (1) print its line in your reply, AND (2) re-write the file with all blocks so far. One line per block, immediately, do NOT wait until the end. Cards appear as soon as a line lands.
 
 Format: EXACTLY one line per block: `N. Title — Kurzbeschreibung — Source`
 The source (3rd segment) MUST be the exact file name or URL of the crawl page the block comes from — it drives the coverage check.

templates/Prompt/Blocks-Small.md

@@ -0,0 +1,15 @@
+Below are block candidates for the topic "{topic}". For EACH, decide whether it is a STANDALONE learning block or a SMALL fragment.
+
+BLOCKS:
+{blocks}
+
+Rules:
+- small = true → a property, detail, sub-step or notation that only makes sense inside another block
+  (e.g. "install() method" belongs to "Plugin lifecycle"; "Knapsack ∈ NP" belongs to "Knapsack").
+- small = false → a self-contained learning unit (its own problem/method/concept).
+- When in doubt → false (keep as a main block).
+
+Write ONLY the JSON file to: {out_path}
+
+Format (each block number → true/false):
+{{"small": {{"1": true, "2": false}}}}